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

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MnStatusDetails
66221081Factored
FactorDigitsBitsDate
649574538852943490724892375.82021-05-16 20:54:02
LL
StatusDateUserResidueShift
Verified (Factored)2014-08-22-Anonymous-2A7662735974463124884290
History
DateUserTypeResult
2021-05-16RobertKazanF
Factor: 64957453885294349072489 / TF: 75-76*
2021-05-16RobertKazanNF
no factor from 2^74 to 2^75
2014-08-22-Anonymous-C-LL
2A76627359744631
2014-05-22NesowaNF-PM1
B1=595000, B2=12048750, E=12
2014-03-19ktonyNF
no factor from 2^73 to 2^74
2014-03-19ktonyNF
no factor from 2^72 to 2^73
2014-03-18ktonyNF
no factor from 2^71 to 2^72
2013-04-26SMoffatNF
no factor from 2^70 to 2^71
2012-02-05-Anonymous-NF
no factor from 2^69 to 2^70
2010-05-18funkjoyNF
no factor from 2^68 to 2^69
2010-02-12sunithayaNF
no factor from 2^67 to 2^68
2010-02-08ZistroskNF
no factor from 2^66 to 2^67
2010-02-03bzmNF
no factor from 2^65 to 2^66
2009-11-17Helmut ZulusNF
no factor from 2^64 to 2^65
2009-04-131997rj7NF
no factor to 2^64