Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
120403271Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 673000
B2 = 673000
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-07-10Dr Mamdouh Barakat on MBAi Cloud4966276F1DE578853273296813
History
DateUserTypeResult
2024-07-10George WoltmanCERT
PRP Certification
CERT proof power = 8
Proof certified good
2024-07-10Dr Mamdouh Barakat on MBAi CloudC-PRP
4966276F1DE57885
PRP proof power = 8
PRP: Verified
Proof certified good
2023-12-03Dr Mamdouh Barakat on MBAi CloudNF-PM1
B1=673000
2022-06-20TheJudgerNF
no factor from 2^76 to 2^77
2021-07-15TheJudgerNF
no factor from 2^75 to 2^76
2021-07-15TheJudgerNF
no factor from 2^74 to 2^75
2021-07-03FlaukrotistNF
no factor from 2^73 to 2^74
2020-11-13SRBaseNF
no factor from 2^72 to 2^73
2015-08-06Ilya AlexandrovNF
no factor from 2^71 to 2^72
2015-08-04XebecerNF
no factor from 2^70 to 2^71
2015-04-29Red RavenNF
no factor from 2^69 to 2^70
2015-04-23Red RavenNF
no factor from 2^68 to 2^69
2015-01-21caddrNF
no factor from 2^67 to 2^68
2013-04-27E.LechnerNF
no factor from 2^66 to 2^67
2012-08-10RichardNF
no factor from 2^65 to 2^66
2010-10-19Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-17Torchwood InstituteNF
no factor from 2^63 to 2^64