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
23977199Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 270
P-1
B1 = 909000
B2 = 269721480
LL
StatusDateUserResidueShift
Verified2005-06-05Jef GrezesEA04B36DE8435E8B22971703
Verified2010-06-02lebEA04B36DE8435E8B2311101
History
DateUserTypeResult
2022-06-11James HeinrichNF-PM1
B1=909000, B2=269721480
2021-10-22TheJudgerNF
no factor from 2^74 to 2^75
2021-09-19TheJudgerNF
no factor from 2^73 to 2^74
2021-09-06TheJudgerNF
no factor from 2^72 to 2^73
2021-09-06TheJudgerNF
no factor from 2^71 to 2^72
2021-08-05SRBaseNF
no factor from 2^70 to 2^71
2018-08-19ramgeisNF
no factor from 2^69 to 2^70
2018-02-02VictordeHollanderNF
no factor from 2^68 to 2^69
2016-06-03VictordeHollanderNF
no factor from 2^67 to 2^68
2010-06-02lebC-LL
EA04B36DE8435E8B