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
15008789Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
122330847568795149833212373.4old
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2023-05-15Perig08138D62E53AC67B1473527353
History
DateUserTypeResult
2023-05-15curtiscCERT
PRP Certification
Proof certified good
2023-05-15PerigC-PRP
M15008789/12233084756879514983321 : 08138D62E53AC67B
PRP proof power = 8
PRP: Verified
Proof certified good
2023-04-23JacobZNF-PM1
B1=578000, B2=550533060
2022-03-27LordJuliusNF
no factor from 2^66 to 2^67
2022-03-27LordJuliusNF
no factor from 2^65 to 2^66
2021-07-26ViliamFNF
no factor from 2^67 to 2^68