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
332250197Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 281
TF target 281
P-1
B1 = 1900000
B2 = 80000000
LL
StatusDateUserResidueShift
Bad2017-07-07James FosterBCBEE8F71E8DBBA7101209386
Verified2021-01-31Joerg Dittmar4F9A88DD58D348CA250258169
Bad2021-06-11Kriesel927B37196262B7EF0
Verified2021-10-06Team_Inspector4F9A88DD58D348CA92157514
History
DateUserTypeResult
2023-10-18James HeinrichNF
no factor from 2^67 to 2^68
2023-02-19Mark RoseNF
no factor from 2^80 to 2^81
2021-10-06Team_InspectorC-LL
4F9A88DD58D348CA
2021-06-11KrieselC-LL
927B37196262B7EF
2021-03-17KrieselNF-PM1
B1=1900000, B2=80000000
2021-01-31Joerg DittmarC-LL
4F9A88DD58D348CA
2018-03-28Siarhei P.NF
no factor from 2^79 to 2^80
2018-03-28Siarhei P.NF
no factor from 2^78 to 2^79
2018-03-28Siarhei P.NF
no factor from 2^77 to 2^78
2017-07-07James FosterC-LL
BCBEE8F71E8DBBA7
2017-02-28James FosterNF-PM1
B1=4660000
2015-08-21srow7NF
no factor from 2^76 to 2^77
2011-10-16SETIKAHNF
no factor from 2^75 to 2^76
2011-07-18SETIKAHNF
no factor from 2^74 to 2^75
2011-05-31SETIKAHNF
no factor from 2^73 to 2^74
2011-05-18SETIKAHNF
no factor from 2^72 to 2^73
2011-04-27Christian GeschwentnerNF
no factor from 2^71 to 2^72
2010-11-06Team_InspectorNF
no factor from 2^70 to 2^71
2009-09-07Team_InspectorNF
no factor from 2^69 to 2^70
2009-02-26Team_InspectorNF
no factor from 2^68 to 2^69