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
128685421Composite: proven not-prime with PRP test
TF
No factors below 277
TF target 277
P-1
B1 = 819000
B2 = 131429802
PRP
StatusDateUserResidueShiftTypeBase
Verified2024-09-17Luke DurantA99E99B0457AE2A2013
History
DateUserTypeResult
2024-09-17ManuelJCCERT
PRP Certification
CERT proof power = 9
Proof certified good
2024-09-17Luke DurantC-PRP
A99E99B0457AE2A2
PRP proof power = 9
PRP: Verified
Proof certified good
2024-09-10575kevkevNF-PM1
B1=819000, B2=131429802
2023-03-07tServoNF
no factor from 2^76 to 2^77
2023-03-07tServoNF
no factor from 2^75 to 2^76
2022-12-22SRBaseNF
no factor from 2^74 to 2^75
2019-06-23Niels_Mache_NextcloudNF
no factor from 2^73 to 2^74
2019-06-23Niels_Mache_NextcloudNF
no factor from 2^72 to 2^73
2016-03-04David HruskaNF
no factor from 2^71 to 2^72
2015-12-16Meral HarbesNF
no factor from 2^70 to 2^71
2015-07-23GregNF
no factor from 2^67 to 2^70
2015-01-15el groccoNF
no factor from 2^66 to 2^67
2012-10-01subgeniusNF
no factor from 2^65 to 2^66
2010-11-08Charles A. MorrisNF
no factor from 2^64 to 2^65
2010-05-29carlos56NF
no factor from 2^63 to 2^64