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
70256957Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 640000
B2 = 13280000
LL
StatusDateUserResidueShift
Verified2016-11-11ivan418C1EA928727DE33225651
Verified2023-07-27Andrey Mitrofanov418C1EA928727DE366052447
History
DateUserTypeResult
2023-07-27Andrey MitrofanovC-LL
418C1EA928727DE3
2016-11-11ivanC-LL
418C1EA928727DE3
2016-04-15-Anonymous-NF
no factor from 2^74 to 2^75
2014-10-19TheJudgerNF-PM1
B1=640000, B2=13280000, E=12
2014-10-12NickOfTimeNF
no factor from 2^73 to 2^74
2014-10-04RichD0NF
no factor from 2^72 to 2^73
2014-09-08srow7NF
no factor from 2^71 to 2^72
2014-01-25SMoffatNF
no factor from 2^70 to 2^71
2009-10-11tscNF
no factor to 2^70
2008-11-27Wojciech FlorekNF
no factor to 2^64