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
71575639Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 660000
B2 = 13200000
LL
StatusDateUserResidueShift
Verified2016-11-27Shnobel772C8A7E0E5AB57949427919
Verified2023-12-06Liang Li772C8A7E0E5AB57922510489
History
DateUserTypeResult
2023-12-06Liang LiC-LL
772C8A7E0E5AB579
2016-11-27ShnobelC-LL
772C8A7E0E5AB579
2016-08-12-Anonymous-NF
no factor from 2^74 to 2^75
2016-04-01Mark RoseNF
no factor from 2^67 to 2^68
2015-03-22TheJudgerNF-PM1
B1=660000, B2=13200000, E=6
2015-03-06chalsallNF
no factor from 2^73 to 2^74
2015-02-21BdotNF
no factor from 2^72 to 2^73
2014-12-27AK76NF
no factor from 2^71 to 2^72
2013-08-18processinfoNF
no factor from 2^70 to 2^71
2013-04-11Brian V.NF
no factor from 2^69 to 2^70
2010-08-20ITSNF
no factor from 2^68 to 2^69
2010-08-07Per JessenNF
no factor from 2^66 to 2^67
2010-05-16-Anonymous-NF
no factor from 2^65 to 2^66
2010-04-22HighPriceRanchNF
no factor from 2^64 to 2^65
2008-10-19Wojciech FlorekNF
no factor to 2^64