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

PrimeNet Exponent Status

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MnStatusDetails
561294983Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
32510154485384097321532271.52020-02-03 15:44:03
History
DateUserTypeResult
2025-04-06James HeinrichF
Factor: 3251015448538409732153 / TF: 71-72
2020-02-03Smok_bmv F
Factor: 3251015448538409732153 / TF: 71-72*
2020-01-08sasakiNF
no factor from 2^70 to 2^71
2018-11-07Niels_Mache_NextcloudNF
no factor from 2^69 to 2^70
2018-04-19sasakiNF
no factor from 2^68 to 2^69
2016-11-26sasakiNF
no factor from 2^67 to 2^68
2015-11-01sasakiNF
no factor from 2^66 to 2^67
2014-05-28sasakiNF
no factor from 2^65 to 2^66
2011-11-16Architects CubedNF
no factor from 2^64 to 2^65
2010-03-04Architects CubedNF
no factor from 2^63 to 2^64