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

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MnStatusDetails
159968761Composite: 1 known prime factor
Factored
FactorDigitsBitsDate
1221707780947349108769672476.72025-10-06 13:36:02
PRP
StatusDateUserResidueShiftTypeBase
Verified (Factored)2025-02-22GdS8C12B15C311F8A03013
History
DateUserTypeResult
2025-10-07James HeinrichF
Factor: 122170778094734910876967 / TF: 76-77
2025-10-06Architects CubedF
Factor: 122170778094734910876967 / TF: 76-77*
2025-02-22Nicholas HodsonCERT
PRP Certification
CERT proof power = 10
Proof certified good
2025-02-22GdSC-PRP
8C12B15C311F8A03
PRP proof power = 10
PRP: Verified (Factored)
Proof certified good
2024-10-03Luke DurantNF-PM1
B1=1373000, B2=1359230730
2024-08-28JacobZNF
no factor from 2^75 to 2^76
2023-03-01SRBaseNF
no factor from 2^74 to 2^75
2021-11-24SRBaseNF
no factor from 2^73 to 2^74
2021-05-30ViliamFNF
no factor from 2^69 to 2^70
2021-05-30ViliamFNF
no factor from 2^68 to 2^69
2018-12-09RuzovejNF
no factor from 2^72 to 2^73
2018-10-27proxy2222NF
no factor from 2^71 to 2^72
2017-11-22David K BrittNF
no factor from 2^70 to 2^71
2016-08-02Dominik RadlerNF
no factor from 2^69 to 2^70
2016-08-02Dominik RadlerNF
no factor from 2^68 to 2^69
2016-05-20BrionHNF
no factor from 2^67 to 2^68
2015-05-01rubikvn2100NF
no factor from 2^66 to 2^67
2013-02-20Chih-Wei HuangNF
no factor from 2^65 to 2^66
2011-02-01sasaki3NF
no factor from 2^64 to 2^65