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Primo Record
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18517# + 39317
7993 decimal digits
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The certification of this number, done by Pierre Cami with Primo 2.2.0 beta 4, took eight months using a PC with an AMD 2GHz processor. ("N#" stands for "Primorial(N)", i.e., the product of all the primes less than or equal to N.)
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18517# + 39317 7993 decimals digits |
Certified by Pierre Cami with Primo (July 2004 - April 2005). Certificate: ecpp7993.zip (3902 KB) |
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Euler(2762) ÷ 2670541 7760 decimals digits |
Certified by Mike Oakes with Primo (November 2003 - July 2004). Certificate: ecpp7760.zip (3584 KB) |
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16369# + 44651 7056 decimals digits |
Certified by Pierre Cami with Primo (February 2004 - July 2004). Certificate: ecpp7056.zip (3180 KB) |
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(32 × 106959 - 23) ÷ 99 6959 decimals digits |
Certified by Hans Rosenthal with Primo (January 2002 - July 2003). Certificate: ecpp6959.zip (4957 KB) |
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16282536 ... 36478311 5878 decimals digits |
Certified by Jose Luis Gomez Pardo with Primo (September 2002 - February 2003). Certificate: ecpp5878b.zip (3223 KB) |
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105019 + 43157099231631693 5020 decimal digits |
Certified by Giovanni and Marco La Barbera with Primo (June 2001 - September 2001). Certificate: ecpp5020.zip (2177 KB) |
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103999 + 4771 4000 decimal digits |
Certified by Giovanni and Marco La Barbera with Titanix [1] (February 2001 - May 2001). Certificate: ecpp4000.zip (1366 KB) |
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(3481223 - 1) ÷ 347 3106 decimal digits |
Certified by Giovanni and Marco La Barbera with Titanix (November 2000 - January 2001). |
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(301789 - 1) ÷ 29 2642 decimal digits |
Certified by Giovanni and Marco La Barbera with Titanix (September 2000 - October 2000). |
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(27331 - 1) ÷ 458072843161 2196 decimal digits |
Certified by Ernst Mayer and François Morain with François Morain's
ECPP program (October 1997). |
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p(1840926) 1505 decimal digits |
Certified by François Morain with his ECPP program (February 1992 - April 1992). |
[1] Primo is the successor of Titanix, which one is no more distributed.
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Mills' prime 20562 decimals digits |
Certified by François Morain with a distributed version of his ECPP program (September 2005 - June 2006). |
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44052638 + 26384405 15071 decimals digits |
Certified by Jens Franke, Thorsten Kleinjung, François Morain and Tobias Wirth with a distributed version of their new ECPP program (<unknown> - July 2004). |
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3571648 + 6483571 10041 decimal digits |
Certified by François Morain with a distributed version of his new ECPP program (<unknown> - December 2003). |
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109999 + 33603 10000 decimal digits |
Certified by Jens Franke, Thorsten Kleinjung and Tobias Wirth with a distributed version of their own ECPP program (July 2003 - August 2003). See ecpp10000.txt |
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2589218 + 2182589 7127 decimal digits |
Certified by François Morain with a distributed version of his new ECPP program running on 12 processors at 2.66 GHz (June 2003 - July 2003). |
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2177580 + 5802177 6016 decimal digits |
Certified by François Morain with a distributed version of his new ECPP program running on 12 processors at 2.66 GHz (May 2003 - June 2003). |
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(23539 + 1) ÷ 3 1065 decimal digits |
Certified by François Morain in 1989 with his ECPP program. This number is the first titanic prime certified with a general purpose primality proving algorithm. |
Last update May 8, 2008
Copyright © 2008, Marcel Martin. All rights reserved.