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
6915619Composite, with 3 known prime factors. Cofactor is composite.
Factored
FactorDigitsBitsDate
497924569928.9old
360857886970542471755.02014-12-31 11:10:11
49996217261011910171962.12016-06-30 11:06:37
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2017-10-10kkmrkkblmbrbk9588B218049127F93013
Verified2019-01-25kracker9588B218049127F93169746513
History
DateUserTypeResult
2023-12-26Stef42NF-PM1
B1=569000, B2=1280664000
2019-01-25krackerC-PRP
M6915619/497924569/36085788697054247/4999621726101191017 : 9588B218049127F9
PRP: Verified
PRP without proof (not generated)
2017-10-10kkmrkkblmbrbkC-PRP
M6915619/497924569/36085788697054247/4999621726101191017 : 9588B218049127F9
PRP: Verified
PRP without proof (not generated)
2016-06-30TJAOIF
Factor: 4999621726101191017 / TF: 62-63
2014-12-31TJAOIF
Factor: 36085788697054247 / TF: 55-56