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
141920153Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime
TF
No factors below 277
TF target 277
P-1
B1 = 1219000
B2 = 1401568740
PRP
StatusDateUserResidueShiftTypeBase
Unverified (Reliable)2025-10-13Cameran430BD1A17D0573B06__13562209713
History
DateUserTypeResult
2025-10-13Cameran430C-PRP
BD1A17D0573B06__
PRP: Unverified (Reliable)
PRP without proof (not generated)
2024-10-02Luke DurantNF-PM1
B1=1219000, B2=1401568740
2024-09-07Luke DurantNF
no factor from 2^76 to 2^77
2024-07-17SRBaseNF
no factor from 2^75 to 2^76
2024-05-06GregNF
no factor from 2^68 to 2^69
2023-01-21SRBaseNF
no factor from 2^74 to 2^75
2021-11-06SRBaseNF
no factor from 2^73 to 2^74
2020-10-25SRBaseNF
no factor from 2^72 to 2^73
2016-04-16Mausbieber_GuckyNF
no factor from 2^71 to 2^72
2016-04-16Mausbieber_GuckyNF
no factor from 2^70 to 2^71
2016-04-16Mausbieber_GuckyNF
no factor from 2^69 to 2^70
2016-04-13Josh FamestadNF
no factor from 2^68 to 2^69
2016-03-25dbaughNF
no factor from 2^67 to 2^68
2015-02-22vwflat4NF
no factor from 2^66 to 2^67
2012-12-10buteraNF
no factor from 2^65 to 2^66
2010-12-15vapaddyNF
no factor from 2^64 to 2^65
2010-06-26RichardNF
no factor from 2^63 to 2^64