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
955220023Composite: 2 known prime factors
Factored
FactorDigitsBitsDate
197940693166071444.22008-06-01 21:54:35
3157440729773479994872168.12024-10-10 09:54:20
History
DateUserTypeResult
2025-09-12mikrNF
no factor from 2^69 to 2^71
2024-10-10TJAOIF
Factor: 315744072977347999487 / TF: 45-69