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
78098261Factored
FactorDigitsBitsDate
568731051384510316513672375.62015-05-26 21:43:32
271512613993849088184692711606675783937121.02015-05-26 21:43:32
P-1 factors
DateFactorB1B2
2015-05-261544176544208785006029007873685331392243067574479378623159137155186200345207
History
DateUserTypeResult
2022-06-27LordJuliusNF
no factor from 2^62 to 2^65
2015-05-26Sergey NosovF-PM1
Factor: 154417654420878500602900787368533139224306757447937862315913 / (P-1, B1=7155186, B2=200345207, E=12)
2014-06-22snme2pm1NF
no factor from 2^73 to 2^74
2013-12-22snme2pm1NF
no factor from 2^72 to 2^73
2013-11-14snme2pm1NF
no factor from 2^71 to 2^72
2013-01-11Simon HarrisonNF
no factor from 2^70 to 2^71
2010-12-17-Anonymous-NF
no factor from 2^69 to 2^70
2010-11-15-Anonymous-NF
no factor from 2^68 to 2^69
2010-10-24-Anonymous-NF
no factor from 2^67 to 2^68
2010-10-21Charles A. MorrisNF
no factor from 2^66 to 2^67
2010-10-19-Anonymous-NF
no factor from 2^65 to 2^66