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:










MnStatusDetails
45271279Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 274
TF target 272
P-1
B1 = 1000000
B2 = 20000000
LL
StatusDateUserResidueShift
Verified2011-04-14-Anonymous-FAF2EC9BE3E8CB4527853612
Bad2017-02-12ANONYMOUS73E05F60C0A5667033407187
Verified2017-06-20MadPooFAF2EC9BE3E8CB4535591948
History
DateUserTypeResult
2024-05-19Naegi MakotoNF
no factor from 2^69 to 2^70
2019-05-06Sid & AndyNF
no factor from 2^73 to 2^74
2019-03-17Sid & AndyNF-PM1
B1=1000000, B2=20000000, E=6
2018-02-24-Anonymous-NF
no factor from 2^72 to 2^73
2017-06-20MadPooC-LL
FAF2EC9BE3E8CB45
2017-02-12ANONYMOUSC-LL
73E05F60C0A56670
2015-11-06-Anonymous-NF
no factor from 2^71 to 2^72
2015-11-06-Anonymous-NF
no factor from 2^70 to 2^71
2015-09-04Carsten KossendeyNF
no factor from 2^69 to 2^70
2014-08-07VictordeHollanderNF
no factor from 2^68 to 2^69
2011-04-14-Anonymous-C-LL
FAF2EC9BE3E8CB45
2010-05-29ANONYMOUSNF-PM1
B1=765000