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
37615379Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 276
TF target 271
P-1
B1 = 455000
B2 = 9782500
LL
StatusDateUserResidueShift
Verified2007-07-04Roman V. Sergeev8EFBE96C03DDF1C411399164
Verified2015-05-25endless_mike8EFBE96C03DDF1C419620932
History
DateUserTypeResult
2021-02-04-Anonymous-NF
no factor from 2^75 to 2^76
2021-01-19-Anonymous-NF
no factor from 2^74 to 2^75
2020-02-14-Anonymous-NF
no factor from 2^73 to 2^74
2019-10-25-Anonymous-NF
no factor from 2^72 to 2^73
2019-10-25-Anonymous-NF
no factor from 2^71 to 2^72
2015-05-25endless_mikeC-LL
8EFBE96C03DDF1C4
2014-11-26NickOfTimeNF
no factor from 2^70 to 2^71
2014-11-11VictordeHollanderNF
no factor from 2^69 to 2^70
2013-06-16krackerNF
no factor from 2^68 to 2^69
2012-04-25Carsten KossendeyNF
no factor from 2^67 to 2^68