Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
5592299Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 272
TF target 266
P-1
B1 = 7000000
B2 = 5925826170
ECM
DigitsB1Curves
255000086 / 280
Estimated T-Level: 21.5 ⓘ
LL
StatusDateUserResidueShift
BadMartin Fahlgren3270FA81C3E5866B0
Verified2000-11-05Marc Getty / Phil FizurBDC9CD7093D4A26B1785560
Verified2001-09-30Art SandersBDC9CD7093D4A26B2982973
Bad2006-04-14S019593270FA81C3E5866B0
Verified2017-05-29kkmrkkblmbrbkBDC9CD7093D4A26B3698504
History
DateUserTypeResult
2022-08-28Sid & AndyNF-PM1
B1=7000000, B2=5925826170
2021-10-11SRBaseNF
no factor from 2^71 to 2^72
2017-05-29kkmrkkblmbrbkC-LL
BDC9CD7093D4A26B
2016-02-23Mark RoseNF
no factor from 2^1 to 2^62
2013-05-21Squeeky_SquirrelNF-PM1
B1=175000, B2=3937500, E=6
2012-12-08dbaughNF
no factor from 2^70 to 2^71
2012-09-18dbaughNF
no factor from 2^69 to 2^70
2012-08-09dbaughNF
no factor from 2^68 to 2^69
2012-07-29dbaughNF
no factor from 2^67 to 2^68
2012-07-24dbaughNF
no factor from 2^66 to 2^67
2012-07-18dbaughNF
no factor from 2^65 to 2^66
2012-07-16dbaughNF
no factor from 2^64 to 2^65
2012-07-15dbaughNF
no factor from 2^63 to 2^64
2011-01-05USAFSSNF-PM1
B1=65000, B2=1023750, E=6
2009-04-20GrunwalderGIMPNF
no factor from 2^62 to 2^63