Marin Mersenne 2^P-1
Username
Password
Forgot password?
Blue
Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
63671683Composite: proven not-prime with Lucas-Lehmer test
TF
No factors below 275
TF target 274
P-1
B1 = 610000
B2 = 12810000
LL
StatusDateUserResidueShift
Verified2014-09-13George Woltman8FA641DEEDBC668D56440217
Verified2023-02-05Sergey Nosov8FA641DEEDBC668D38402316
History
DateUserTypeResult
2023-02-05Sergey NosovC-LL
8FA641DEEDBC668D
2022-12-11tottenhoffNF
no factor from 2^74 to 2^75
2016-02-23Mark RoseNF
no factor from 2^59 to 2^63
2014-09-13George WoltmanC-LL
8FA641DEEDBC668D
2013-11-25ktonyNF
no factor from 2^73 to 2^74
2013-09-29TheJudgerNF-PM1
B1=610000, B2=12810000, E=12
2013-07-31TheJudgerNF
no factor from 2^72 to 2^73
2013-07-31TheJudgerNF
no factor from 2^71 to 2^72
2012-09-03-Anonymous-NF
no factor from 2^70 to 2^71
2011-12-29c10ck3rNF
no factor from 2^69 to 2^70
2009-12-11DorothyNF
no factor from 2^68 to 2^69
2009-11-30arnaudNF
no factor from 2^67 to 2^68
2009-11-23Sturle SundeNF
no factor from 2^66 to 2^67
2009-11-15SAHS Science DeptNF
no factor from 2^65 to 2^66
2009-09-10seekuaNF
no factor from 2^64 to 2^65
2009-02-25Wojciech FlorekNF
no factor from 2^63 to 2^64