Records Set by y-cruncher

(Last updated: November 16, 2016)

 

Record Size Computations:

 

Blue: Current World Record

Green: Former World Record

Red: Unverified computation.*

 

*To protect against computation errors from software bugs and/or hardware instability, a computation must be verified before it counts as a world record.

This is usually done by repeating the computation using a different and independent formula.

Date Announced Date Completed: Source: Who: Constant: Decimal Digits: Time: Computer:
November 15, 2016 November 11, 2016 Blog
Sponsor
Peter Trueb Pi 22,459,157,718,361 Compute:  105 days

Verify:  28 hours

Validation File

4 x Xeon E7-8890 v3 @ 2.50 GHz
1.25 TB DDR4
20 x 6 TB 7200 RPM Seagate
September 3, 2016 August 29, 2016   Ron Watkins e 5,000,000,000,000

Compute:  48.6 days

Verify:  48.7 days

2 x Xeon X5690 @ 3.47 GHz
141 GB
August 14, 2016 June 26, 2016   Ron Watkins Euler-Mascheroni Constant 477,511,832,674

Compute:  34.4 days

Not Verified

4 x Xeon E5-4660 v3 @ 2.1 GHz
1 TB
July 11, 2016 July 5, 2016   "yoyo" Golden Ratio 10,000,000,000,000

Compute:  6.2 days

Not Verified

2 x Intel Xeon E5-2696 v4 @ 2.2 GHz
768 GB
June 28, 2016 June 19, 2016   Ron Watkins Square Root of 2 10,000,000,000,000

Compute:  18.8 days

Verify:  25.2 days

2 x Xeon X5690 @ 3.47 GHz
141 GB
June 4, 2016 May 29, 2016   Ron Watkins Lemniscate 250,000,000,000

Compute:  91.7 hours

Verify:  270 hours

4 x Xeon E5-4660 v3 @ 2.1 GHz - 1TB
4 x Xeon X6550 @ 2 GHz - 512 GB
June 4, 2016 May 29, 2016   "yoyo" e 2,500,000,000,000

Compute:  55.8 hours

Not Verified

2 x Intel Xeon E5-2696 v4 @ 2.2 GHz
768 GB
June 4, 2016 June 2, 2016   "yoyo" Golden Ratio 5,000,000,000,000

Compute:  67.9 hours

Not Verified

2 x Intel Xeon E5-2696 v4 @ 2.2 GHz
768 GB
May 25, 2016 May 18, 2016   Ron Watkins Euler-Mascheroni Constant 250,000,000,000

Compute:  35.9 days

Verify:  30.65 days

2 x Xeon E5-4660 v3 @ 2.1 GHz - 1 TB
4 x Xeon X6550 @ 2.0 GHz - 512 GB
April 28, 2016 April 28, 2016   "yoyo" Golden Ratio 2,500,000,000,000

Compute:  42.2 hours

Not Verified

2 x Intel Xeon E5-2696 v4 @ 2.2 GHz
768 GB
April 24, 2016 April 18, 2016   Ron Watkins Log(2) 500,000,000,000

Compute:  12.8 days

Verify:  14.4 days

4 x Xeon X5690 @ 3.47 GHz - 141 GB
April 17, 2016 April 12, 2016   Ron Watkins Catalan's Constant 250,000,000,000

Compute:  204 hours

Verify:  207 hours

4 x Xeon E5-4660 v3 @ 2.1 GHz
1 TB
April 9, 2016 April 3, 2016   Ron Watkins Lemniscate 200,000,000,000

Compute:  61.6 hours

Verify:  73.7 hours

4 x Xeon X6550 @ 2 GHz - 492 GB
April 9, 2016 April 3, 2016   Ron Watkins Log(10) 500,000,000,000

Compute:  14.4 days

Verify:  15.2 days

2 x Xeon X5690 @ 3.47 GHz
141 GB
April 3, 2016 April 2, 2016   Ron Watkins Square Root of 2 5,000,000,000,000

Compute:  19.6 days

Verify:  20.8 days

4 x Xeon X7350 @ 2.93 GHz
96 GB
March 16, 2016 March 15, 2016   Peter Trueb Euler-Mascheroni Constant 160,000,000,000

Compute:  60.6 hours

Verify:  104 hours

4 x Xeon E7-8890 v3 @ 2.5 GHz
1.25 TB
February 9, 2016   Peter Trueb Lemniscate 190,000,000,000

Compute:  26.2 hours

Verify:  31.3 hours

4 x Xeon E7-8890 v3 @ 2.5 GHz
1.25 TB
February 17, 2016 February 14, 2016   Ron Watkins e 1,500,000,000,000

Compute:  116 hours

Verify:  116 hours

2 x Xeon X5690 @ 3.47 GHz
141 GB
February 8, 2016 February 7, 2016   Ron Watkins Log(10) 250,000,000,000

Compute:  70.1 hours

Verify:  79.3 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
February 8, 2016   Johan Lundqvist Log(10) 240,000,000,000

Compute:  63.7 hours

Not Verified

2 x Intel Xeon E5-2698 v3 @ 2.3 GHz
204 GB
February 6, 2016   Mike A Catalan's Constant 500,000,000,000

Compute:  26.1 days

Not Verified

2 x Intel Xeon E5-2697 v3 @ 2.6 GHz
128 GB
February 1, 2016 January 30, 2016   Ron Watkins Log(2) 350,000,000,000

Compute:  132 hours

Verify:  92 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
January 23, 2016 January 18, 2016   Ben Hadad Log(10) 211,111,111,111

Compute:  10.9 days

Verify:  In Progress

Intel Core i7 5960X @ 3 GHz
32 GB
January 20, 2016 January 14, 2016   Ron Watkins Square Root of 2 2,000,000,000,100

Compute:  213 hours

Verify:  284 hours

2 x Xeon X5690 @ 3.47 GHz
128 GB
December 21, 2015 December 21, 2015   Dipanjan Nag Zeta(3) - Apery's Constant 400,000,000,000

Compute:  22 days

Verify:  24 days

Xeon E5-2698B @ 2.0 GHz - 224 GB
December 21, 2015 December 21, 2015   Ron Watkins Lemniscate 130,000,000,000

Compute:  269 hours

Verify:  304 hours

4 x Xeon X6550 @ 2 GHz - 492 GB
November 26, 2015 August 1, 2014   David Hickox Log(2) 300,000,000,000

Compute:  75 days

Verify:  In Progress

Intel Core i7 4770K @ 3.5 GHz
16 GB DDR3
November 22, 2015 November 14, 2015   Ron Watkins Lemniscate 125,000,000,000

Compute:  217 hours

Verify:  251 hours

4 x Xeon X6550 @ 2 GHz - 256 GB
October 12, 2015 October 12, 2015   Ethan Gallagher Lemniscate 120,000,000,000

Compute:  111 days

Verified by Ron Watkins

Intel Core i5 4300U @ 2.5 GHz - 8 GB
August 11, 2015 August 7, 2015   Ron Watkins Zeta(3) - Apery's Constant 250,000,000,000

Compute:  152 hours

Verify:  162 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
July 24, 2015 July 22, 2015
July 23, 2015
Source Ron Watkins
Dustin Kirkland
Golden Ratio 2,000,000,000,000

Compute:  77.3 hours

Verify:  76.33 hours

Compute:  79.3 hours

Verify:  80.8 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
Xeon E5-2676 v3 @ 2.4 GHz - 64 GB
July 13, 2015 July 12, 2015   Ron Watkins Log(2) 250,000,000,000

Compute:  126 hours

Verify:  140 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
July 8, 2015 July 5, 2015   Ron Watkins Lemniscate 100,000,000,000

Compute:  123 hours

Verify:  146 hours

4 x Xeon X6550 @ 2 GHz - 512 GB
June 26, 2015 June, 24, 2015   Ellie Hebert e 1,400,000,000,000

Compute:  15 days

Verify:  22 days

FX-8370 @ 4.0 GHz - 8 GB
FX-8370 @ 4.0 GHz - 16 GB
June 13, 2015 June 13, 2015   Andreas Stiller Lemniscate 80,000,000,000

Compute:  8.6 hours

Verify:  10.6 hours

4 x Intel Xeon E7-8890v3 @ 2.5 GHz
512 GB
June 8, 2015 June 7, 2015   Setti Financial LLC Catalan's Constant 200,000,001,100

Compute:  185 days

Verify:  72 days

 

Validations: 1, 2

Intel Core i7 4820K @ 4.5 GHz
24 GB DDR3
April 1, 2015 April 12, 2015   Ben Hadad Lemniscate 55,000,000,000

Compute:  40.4 hours

Verify:  6.99 days

2 x Xeon E5-2670 v2 @ 2.5 GHz
(32 vCPU only) - 244 GB
Intel Core i7 4790K - 8 GB
March 21, 2015 March 19, 2015   Andreas Stiller Lemniscate 40,000,000,000

Compute:  15.3 hours

Verify:  15.5 hours

4 x Xeon E7-4890 v2 @ 2.8 GHz
256 GB DDR3
February 9, 2015 February 9, 2015   Randy Ready Lemniscate 15,000,000,000

Compute:  6.0 hours

Verify:  7.2 hours

Amazon Web Services
2 x Xeon E5-2670 v2 @ 2.5 GHz
(32 Logical Cores only)
240 GB DDR3
October 8, 2014 October 7, 2014   "houkouonchi" Pi 13,300,000,000,000

Compute:  208 days

Verify:  182 hours

Validation File

2 x Xeon E5-4650L @ 2.6 GHz
192 GB DDR3 @ 1333 MHz
24 x 4 TB + 30 x 3 TB
March 24, 2014 March 10, 2014   Shigeru Kondo Log(10) 200,000,000,050

Compute: 44.4 hours

Verify: 49.7 hours

 

Validations: 1, 2

2 x Xeon E5-2690 @ 3.3 GHz
256 GB DDR3 @ 1600 MHz
12 x 3 TB
February 28, 2014   Shigeru Kondo Log(2) 200,000,000,050

Compute: 55.8 hours

Verify: 56.5 hours

 

Validations: 1, 2

2 x Xeon E5-2690 @ 3.3 GHz
256 GB DDR3 @ 1600 MHz
12 x 3 TB
December 28, 2013 December 28, 2013 Source Shigeru Kondo Pi 12,100,000,000,050

Compute: 94 days

Verify: 46 hours

2 x Xeon E5-2690 @ 2.9 GHz
128 GB DDR3 @ 1600 MHz
24 x 3 TB
December 22, 2013 December 22, 2013   Alexander Yee Euler-Mascheroni Constant 119,377,958,182

Compute:  50 days

Verify:  38 days

 

Validations: 1, 2

"Nagisa"
2 x Intel Xeon X5482 @ 3.2 GHz
64 GB DDR2 FB-DIMM
64 GB SSD (Boot) + 2 TB (Data)
8 x 2 TB (Computation)
September 13, 2013 September 13, 2013 Source Setti Financial LLC Zeta(3) - Apery's Constant 200,000,001,000

Compute:  ~5 months

Not Verified

Intel Core i5-3570S @ 3.1 GHz
16 GB
April 8, 2013 April 8, 2013 Source Setti Financial LLC Catalan's Constant 100,000,000,000

Compute:  ~4 months

Not Verified

2 x Intel Xeon X5460 @ 3.16 GHz
16 GB DDR2
February 9, 2012 February 9, 2012   Alexander Yee Square Root of 2 2,000,000,000,050

Compute:  110 hours
Verify:  119 hours

2 x Xeon X5482 @ 3.2 GHz - 64 GB
8 x 2 TB
Core i7 2600K @ 4.4 GHz - 16 GB
5 x 1 TB + 5 x 2 TB
October 17, 2011 October 16, 2011 Source Shigeru Kondo Pi 10,000,000,000,050

Compute:  371 days

Verify:  45 hours

2 x Intel Xeon X5680 @ 3.33 GHz
96 GB DDR3 @ 1066 MHz
24 x 2 TB
May 24, 2011 May 20, 2011   Shigeru Kondo Log(10) 100,000,000,000

Compute and Verify:
142 hours

Intel Core i7 2500K @ 4.8 GHz
16 GB DDR3 + 6 x 1 TB
May 14, 2011   Shigeru Kondo Log(2) 100,000,000,000

Compute and Verify:
142 hours

Intel Core i7 2500K @ 4.8 GHz
16 GB DDR3 + 6 x 1 TB
December 13, 2010 December 12, 2010   Alex Roberts Catalan's Constant 50,000,000,000

Compute:  35.5 days

Not Verified

AMD Phenom II X4 945 @ 3.0 GHz
8 GB
December 4, 2010 November 26, 2010   Alex Roberts Log(2) 50,000,000,000

Compute:  13.1 days

Independently Verified

Intel Core i7 720Q @ 1.60 GHz
4 GB DDR3
September 17, 2010 September 17, 2010 Source Alexander Yee Zeta(3) - Apery's Constant 100,000,001,000

Compute:  148 hours

Verify:  366 hours

"Nagisa" + "Ushio"
August 2, 2010 August 2, 2010 Source Shigeru Kondo &
Alexander Yee*
Pi 5,000,000,000,000

Compute:  90 days

Verify:  64 hours

2 x Intel Xeon X5680 @ 3.33 GHz
96 GB DDR3 @ 1066 MHz
16 x 2 TB
July 8, 2010 July 8, 2010 Source Alexander Yee Golden Ratio 1,000,000,000,000

Compute:  114 hours

Verify:  ~7 days*

*Not a continuous run.

"Nagisa"
2 x Intel Xeon X5482 @ 3.2 GHz
64 GB DDR2 FB-DIMM
1.5 TB (Boot + Output)
4 x 1 TB (2 x 2 RAID0) + 6 x 2 TB
July 5, 2010 July 5, 2010 Source Shigeru Kondo e 1,000,000,000,000

Compute: 224 hours

Verify: 219 hours

Intel Core i7 980X @ 3.33 GHz
12 GB DDR3
2 TB (Boot + Output)
8 x 1 TB (Computation)
March 22, 2010 March 22, 2010 Source Shigeru Kondo Square Root of 2 1,000,000,000,000

Compute:  193 hours

Verify:  98 hours

Core i7 975 @ 4 GHz - 12GB
8 x 1 TB HDs
2 x Xeon W5590 - 144GB
16 x 2 TB HDs
February 21, 2010 February 20, 2010 Source Alexander Yee e 500,000,000,000

Compute and Verify:
307 hours

"Ushio"
April 16, 2009 April 16, 2009 Source Alexander Yee &
Raymond Chan
Catalan's Constant 31,026,000,000

Compute:  178 hours

Verify:  221 hours

"Nagisa"
March 13, 2009 March 13, 2009 Source Alexander Yee &
Raymond Chan
Euler-Mascheroni Constant 29,844,489,545

Compute:  205 hours

Verify:  269 hours

"Nagisa"
February 28, 2009 Source Alexander Yee &
Raymond Chan
Log(10) 31,026,000,000

Compute and Verify:
40 hours

"Nagisa"
February 15, 2009 Source Alexander Yee &
Raymond Chan
Zeta(3) - Apery's Constant 31,026,000,000

Compute:  45 hours

Verify:  44 hours

"Nagisa"
February 4, 2009 Source Alexander Yee &
Raymond Chan
Log(2) 31,026,000,000

Compute:  24 hours

Verify:  16 hours

"Nagisa"
January 31, 2009 January 31, 2009 Source Alexander Yee &
Raymond Chan
Catalan's Constant 15,510,000,000

Compute:  88 hours

Verify:  100 hours

"Nagisa"
January 21, 2009 January 21, 2009 Source Alexander Yee &
Raymond Chan
Zeta(3) - Apery's Constant 15,510,000,000

Compute:  20 hours

Verify:  21 hours

"Nagisa"
January 18, 2009 January 18, 2009 Source Alexander Yee &
Raymond Chan
Euler-Mascheroni Constant 14,922,244,771

Compute:  96 hours

Verify:  134 hours

"Nagisa"
January 7, 2009 Source Alexander Yee &
Raymond Chan
Log(2) 15,500,000,000

Compute:  12.5 hours

Verify:  8.3 hours

"Nagisa"

*This first world record for Pi was run entirely by Shigeru Kondo, but with a lot of support from me (Alexander Yee) to get it done. There was also a lot of back-and-forth testing between the two of us to stabilize the y-cruncher software before he could actually run the main computation.

 

After this first record, we had more or less learned what was needed. So from there on, all the later records were mostly on his own.

 

 

Other Large Computations:

 

This is a list of other notably large computations. They are notable either because they are long running and either came close to a record, or are for less popular constants that nobody tracks.

 

Blue: Current World Record

Green: Former world record or not a world record.

Red: Unverified computation or not a world record.

Date Announced Date Completed: Source: Who: Constant: Decimal Digits: Time: Computer:
September 19, 2016 September 12, 2016   David Galilei Natale Sqrt(5) 1,700,000,000,000

Compute:  134 hours

Verify:  113 hours

Core i7 3970X @ 3.2 GHz
64 GB
July 17, 2016 July 12, 2016   David Galilei Natele e 1,600,000,000,000

Compute:  216 hours

Intel Core i7 3970X @ 3.2 GHz
June 28, 2016 June 12, 2016   David Galilei Natele e 1,280,000,000,000

Compute:  150 hours

Intel Core i7 3970X @ 3.2 GHz
June 4, 2016 May 17, 2016   "yoyo" ArcCoth(2) 100,000,000,000

Compute:  9.68 hours

2 x Intel Xeon E5-2696 v4 @ 2.2 GHz
768 GB
May 18, 2016 April 30, 2016   David Hickox Log(10) 350,000,000,000

Compute:  63.8 days

Intel Core i7 4770K @ 3.5 GHz
16 GB DDR3
May 18, 2016 May 14, 2016   Ethan Gallagher Sqrt(11) 100,000,000,000

Compute:  48.8 hours

Verify:  19.5 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
April 9, 2016 March 26, 2016   Ron Watkins Sqrt(5) 1,000,000,000,000

Compute:  36.4 hours

Verify:  85.8 hours

2 x Xeon X5690 @ 3.47 GHz - 141 GB
2 x Xeon E5450 @ 3.0 GHz - 16 GB
April 3, 2016 March 27, 2016   Ron Watkins Sqrt(7) 1,000,000,000,000

Compute:  36.6 hours

Verify:  36.7 hours

2 x Xeon X5690 @ 3.47 GHz
141 GB
March 22, 2016   Ron Watkins Sqrt(3) 1,000,000,000,000

Compute:  36.7 hours

Verify:  36.6 hours

2 x Xeon X5690 @ 3.47 GHz
141 GB
March 21, 2016 March 19, 2016   Dario Ostuni Sqrt(11) 60,000,000,000

Compute:  16.5 hours

Verify:  18.3 hours

Intel Core i3 2130 @ 3.4 GHz
8 GB
February 8, 2016 February 6, 2016   Ethan Gallagher Sqrt(5) 150,000,000,000

Compute:  49.3 hours

Verify:  43.3 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
February 1, 2016 January 30, 2016   Ron Watkins Sqrt(3) 600,000,000,000

Compute:  45.5 hours

Verify:  50.1 hours

2 x Xeon E5450 @ 3.0 GHz
16 GB
January 30, 2016   Ethan Gallagher Sqrt(5) 100,000,000,000

Compute:  33.4 hours

Verify:  22.8 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
January 26, 2016 January 25, 2016   Ron Watkins Sqrt(3) 125,000,000,000

Compute:  10.8 hours

Verify:  14.3 hours

2 x Xeon E5450 @ 3.0 GHz
16 GB
January 24, 2016   Ben Hadad Sqrt(5) 85,000,000,000

Compute:  4.65 hours

Verify:  4.61 hours

Intel Core i7 5960X @ 3.0 GHz
32 GB
January 23, 2016   Ben Hadad Sqrt(3) 350,000,000,000

Compute:  37.4 hours

Verify:  44.6 hours

Intel Core i7 5960X @ 3.0 GHz
32 GB
February 4, 2016 January 23, 2016   Ethan Gallagher Sqrt(3) 150,000,000,001

Compute:  84.0 hours

Verify:  54.5 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
January 20, 2016 January 14, 2016   Ethan Gallagher Sqrt(3) 100,000,000,000

Compute:  21.6 hours

Verify:  22.7 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
January 11, 2016 January 7, 2016   Ron Watkins Sqrt(3) 91,804,925,913

Compute:  66 minutes

Verify:  71 minutes

4 x Xeon X6550 @ 2 GHz - 504 GB
December 27, 2015 December 24, 2015   Ethan Gallagher Sqrt(11) 50,000,000,000

Compute:  4.9 hours

Verify:  4.9 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
December 24, 2015   Ethan Gallagher Sqrt(7) 50,000,000,000

Compute:  5.2 hours

Verify:  4.9 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
December 24, 2015   Ethan Gallagher Sqrt(5) 50,000,000,000

Compute:  6.0 hours

Verify:  5.2 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
December 23, 2015   Ethan Gallagher Sqrt(3) 50,000,000,000

Compute:  5.1 hours

Verify:  6.7 hours

Intel Core i5 4300U @ 2.5 GHz
8 GB
June 4, 2016 October 23, 2016   Timothy J Flynn ArcCoth(2) 2,000,000,000

Compute:  3.21 hours

2 x Intel Xeon X5460 @ 3.16 GHz
8 GB
March 29, 2015 March 28, 2015   Ben Hadad Lemniscate 30,000,000,000

Compute:  74 hours

Intel Core i7 4790K @ 4.0 GHz
8 GB DDR3
March 29, 2015 March 18, 2014   David Hickox Log(3) 200,000,000,000

Compute:  33 days

Verify:  38 hours

Intel Core i7 4770K @ 3.5 GHz
16 GB DDR3