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
40471267TF
No factors below 273
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2008-03-05Joan Staeb1F571C7BB20EE52720876530
Verified2017-08-20Dmitriy Degtiarev1F571C7BB20EE52736362325
History
DateUserTypeResult
2019-07-05Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=6
2019-05-11Sid & AndyNF
no factor from 2^72 to 2^73
2017-08-20Dmitriy DegtiarevC-LL
1F571C7BB20EE527
2015-04-10VictordeHollanderNF
no factor from 2^71 to 2^72
2014-12-23NickOfTimeNF
no factor from 2^70 to 2^71
2014-12-23NickOfTimeNF
no factor from 2^69 to 2^70
2013-11-08Carsten KossendeyNF
no factor from 2^68 to 2^69