Marin Mersenne 2^P-1
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GIMPS
Finding World Record Primes Since 1996

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MnStatusDetails
78303229Factored
FactorDigitsBitsDate
617791080191760400747116732386125825737122.22015-05-29 18:41:07
P-1 factors
DateFactorB1B2
2015-05-2961779108019176040074711673238612582577350000
History
DateUserTypeResult
2015-05-29La GüiraF-PM1
Factor: 6177910801917604007471167323861258257
2014-10-06blipNF
no factor from 2^73 to 2^74
2013-01-15SWL551NF
no factor from 2^72 to 2^73
2013-01-14SWL551NF
no factor from 2^71 to 2^72
2013-01-14SWL551NF
no factor from 2^70 to 2^71
2010-11-16Benoît DelépineNF
no factor from 2^69 to 2^70
2010-11-11Benoît DelépineNF
no factor from 2^68 to 2^69
2010-11-11-Anonymous-NF
no factor from 2^67 to 2^68
2010-11-03Aldo_GridNF
no factor from 2^66 to 2^67
2010-10-29Ethan O'ConnorNF
no factor from 2^65 to 2^66
2010-10-28-Anonymous-NF
no factor from 2^64 to 2^65