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
11371571Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 268
P-1
B1 = 5000000
B2 = 6412737870
ECM
DigitsB1Curves
25500002 / 280
Estimated T-Level: 20.0 ⓘ
LL
StatusDateUserResidueShift
Verified2001-05-27C. Cooper / S. Boone153CEDBFD9548F037478089
Verified2004-02-23Sean C. McGinty153CEDBFD9548F039181257
History
DateUserTypeResult
2024-11-17TheJudgerNF
no factor from 2^72 to 2^73
2024-08-17MooMoo2NF-PM1
B1=5000000, B2=6412737870
2024-02-18MooMoo2NF-PM1
B1=1320000, B2=864859710
2021-09-03LaurVNF
no factor from 2^71 to 2^72
2021-08-14SRBaseNF
no factor from 2^70 to 2^71
2021-08-06SRBaseNF
no factor from 2^69 to 2^70
2017-12-27ramgeisNF
no factor from 2^68 to 2^69
2017-12-27ramgeisNF
no factor from 2^67 to 2^68
2016-01-04VictordeHollanderNF
no factor from 2^66 to 2^67
2015-05-05NesowaNF
no factor from 2^65 to 2^66
2015-03-21Sid & AndyNF-PM1
B1=130000, B2=2437500, E=6
2013-11-18lycornNF
no factor from 2^64 to 2^65