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

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MnStatusDetails
17625691Composite, with 1 known prime factor. Cofactor is composite.
Factored
FactorDigitsBitsDate
253245861568346986100392374.42024-12-08 01:51:52
ECM
DigitsB1Curves
25500001 / 280
Estimated T-Level: 20.0 ⓘ
TF below 2^61 is very unlikely to find new factors due to ECM effort.
LL
StatusDateUserResidueShift
Verified (Factored)2003-04-19Simon Harrison8FCF2AC646E375D39274443
Verified (Factored)2007-01-01arnaud8FCF2AC646E375D36703013
PRP Cofactor
StatusDateUserResidueNumber of
known factors		ShiftTypeBase
Verified2024-12-28Perig6AD8034C542315DF1850885553
P-1 factors
DateFactorB1B2
2024-12-08253245861568346986100391300000556827180
History
DateUserTypeResult
2024-12-28XyzzyCERT
PRP Certification
Proof certified good
2024-12-28PerigC-PRP
M17625691/25324586156834698610039 : 6AD8034C542315DF
PRP proof power = 8
PRP: Verified
Proof certified good
2024-12-08Sid & AndyF-PM1
Factor: 25324586156834698610039 / (P-1, B1=1300000, B2=556827180)
2022-01-08-Anonymous-NF
no factor from 2^73 to 2^74
2021-12-08-Anonymous-NF
no factor from 2^72 to 2^73
2021-09-24-Anonymous-NF
no factor from 2^71 to 2^72
2021-09-10SRBaseNF
no factor from 2^70 to 2^71
2020-11-03James HeinrichNF-PM1
B1=316000, B2=8778000, E=12
2020-10-08James HeinrichNF-PM1
B1=316000, B2=8778000, E=12
2020-04-23lycornNF
no factor from 2^69 to 2^70
2018-03-11ramgeisNF
no factor from 2^68 to 2^69
2018-03-11ramgeisNF
no factor from 2^67 to 2^68
2014-08-25NesowaNF
no factor from 2^66 to 2^67
2014-02-15NesowaNF
no factor from 2^65 to 2^66