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
3451699Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 271
TF target 264
TF below 2^80 is very unlikely to find new factors due to ECM effort.
P-1
B1 = 7900000
B2 = 20242420380
ECM
DigitsB1Curves
2550000280 / 280
3025000061 / 640
Estimated T-Level: 25.5 ⓘ
LL
StatusDateUserResidueShift
VerifiedCharlie Dorian77CA7939D26DFA260
Verified1999-07-12Lawrence Cairns-Smith77CA7939D26DFA262343514
History
DateUserTypeResult
2025-05-06TJAOINF
no factor from 2^70 to 2^71
2023-04-15Sid & AndyNF-PM1
B1=7900000, B2=20242420380
2022-05-04TJAOINF
no factor from 2^69 to 2^70
2021-08-29mikrNF-PM1
B1=5000000, B2=200000000, E=12
2021-01-05axnNF
no factor from 2^68 to 2^69
2019-02-18TJAOINF
no factor from 2^67 to 2^68
2017-02-08Gordon SpenceNF
no factor from 2^66 to 2^67
2016-02-23Mark RoseNF
no factor from 2^62 to 2^63
2015-04-16Gordon SpenceNF
no factor from 2^65 to 2^66
2015-02-07VictordeHollanderNF
no factor from 2^64 to 2^65
2015-02-07VictordeHollanderNF
no factor from 2^63 to 2^64
2014-09-20HBendtzNF-PM1
B1=500000, B2=10000000, E=12
2012-08-18GrunwalderGIMPNF
no factor from 2^1 to 2^63
2011-07-31markrNF
no factor to 2^62