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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Exponent Range:





MnDetails
8447171
Composite, with 5 known prime factors. Cofactor is composite.
Trial Factored to 268
TF target 268
Factored
FactorDigitsBitsDate
67577369826.0old
13817713378391340.32008-09-08 04:33:22
41399416127591341.92013-12-13 17:42:39
1302328055233631245512166.82020-10-06 09:43:27
770572599454083922570584972686.02024-05-27 16:44:22
P-1 factors
DateFactorsB1B2
2024-05-2777057259945408392257058497
40000004000000
PRP Cofactor
StatusProofDateUserResidueNumber of
known factors
ShiftTypeBase
Factored
PRP without proof (not generated)
2018-10-28rucio9491B077C4ACB83B3148674953
Factored
PRP without proof (not generated)
2020-06-03arnaud9491B077C4ACB83B3757831553
Factored
PRP without proof (not generated)
2020-10-07tottenhoff9491B077C4ACB83B415199553
Verified
Certified Good
2024-05-28Stef429491B077C4ACB83B5399688353
History
DateUserTypeResult
2025-03-23beepNF-PM1B1=4800000, B2=8597739150
2024-05-28Paulo JorenteCERT
Proof certified good
2024-05-28Stef42C-PRPM8447171/67577369/1381771337839/4139941612759/130232805523363124551/77057259945408392257058497 : 9491B077C4ACB83B
Proof Certified Good

Proof Power: 8

2024-05-27Stef42F-PM1Factor: 77057259945408392257058497 / B1=4000000
2020-10-07tottenhoffC-PRPM8447171/67577369/1381771337839/4139941612759/130232805523363124551 : 9491B077C4ACB83B
2020-10-06TJAOIFFactor: 130232805523363124551
2020-06-03arnaudC-PRPM8447171/67577369/1381771337839/4139941612759 : 9491B077C4ACB83B
2018-10-28rucioC-PRPM8447171/67577369/1381771337839/4139941612759 : 9491B077C4ACB83B
2013-12-13TJAOIFFactor: 4139941612759
2008-09-08Will EdgingtonFFactor: 1381771337839