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
39710413Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 273
TF target 272
P-1
B1 = 450000
B2 = 7762500
LL
StatusDateUserResidueShift
Verified2008-06-22The Treachers030B5E54E438A2B633947376
Bad2015-10-26demfloro4E92FBF246A17ED220170298
Verified2016-05-15MadPoo030B5E54E438A2B67233708
History
DateUserTypeResult
2019-10-18-Anonymous-NF
no factor from 2^72 to 2^73
2019-07-26monstNF
no factor from 2^71 to 2^72
2016-05-15MadPooC-LL
030B5E54E438A2B6
2015-10-26demfloroC-LL
4E92FBF246A17ED2
2014-12-14NickOfTimeNF
no factor from 2^70 to 2^71
2013-10-11VictordeHollanderNF
no factor from 2^69 to 2^70
2013-10-11VictordeHollanderNF
no factor from 2^68 to 2^69