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

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MnStatusDetails
104363929Factored
FactorDigitsBitsDate
128772122617107610072619932683.42021-06-14 23:48:36
P-1 factors
DateFactorB1B2
2021-06-141287721226171076100726199373700020466000
History
DateUserTypeResult
2021-06-14Jwb52zF-PM1
Factor: 12877212261710761007261993 / (P-1, B1=737000, B2=20466000)
2021-02-04TheJudgerNF
no factor from 2^75 to 2^76
2021-02-04TheJudgerNF
no factor from 2^74 to 2^75
2020-04-01SRBaseNF
no factor from 2^73 to 2^74
2020-03-08tscNF
no factor from 2^72 to 2^73
2015-01-06SMoffatNF
no factor from 2^71 to 2^72
2014-10-17shaugeNF
no factor from 2^70 to 2^71
2014-10-17shaugeNF
no factor from 2^69 to 2^70
2014-10-15AK76NF
no factor from 2^68 to 2^69
2014-10-12AK76NF
no factor from 2^67 to 2^68
2013-09-02timc995NF
no factor from 2^66 to 2^67
2012-05-05oodairaNF
no factor from 2^65 to 2^66
2010-08-27sasaki3NF
no factor from 2^64 to 2^65
2010-04-182knarfNF
no factor from 2^63 to 2^64