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

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MnStatusDetails
79978001Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 275
P-1
B1 = 750000
B2 = 16125000
LL
StatusDateUserResidueShift
Verified2017-06-03DanielConstantinMayer790DF1D58293FB0F64678532
Verified2025-09-14JohnnyBGood790DF1D58293FB0F77813022
History
DateUserTypeResult
2025-09-14JohnnyBGoodC-LL
790DF1D58293FB0F
2017-06-03DanielConstantinMayerC-LL
790DF1D58293FB0F
2015-09-19NickOfTimeNF
no factor from 2^74 to 2^75
2015-09-13TheJudgerNF-PM1
B1=750000, B2=16125000, E=12
2015-01-06ChuckNF
no factor from 2^73 to 2^74
2012-04-10Jerry HallettNF
no factor from 2^67 to 2^73
2011-06-18Carsten KossendeyNF
no factor from 2^65 to 2^67
2010-11-29Architects CubedNF
no factor from 2^64 to 2^65
2009-05-29Architects CubedNF
no factor from 2^63 to 2^64