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

PrimeNet Exponent Status

Exponent Range:





MnDetails
26661529
Composite: proven not-prime with Lucas-Lehmer test
No factors below 274
TF target 270
P-1
B1 = 280000
B2 = 3080000
LL
StatusDateUserResidueShiftSoftware
Verified2005-03-20Aaron ZodB21282C6702984EB5415071Windows,Prime95,v23,NT service,(aka WZ5)
Verified2012-07-25DubslowB21282C6702984EB0CUDALucas v2.04 Beta
History
DateUserTypeResult
2024-05-13James HeinrichNFno factor TF: 68-69
2021-09-25TheJudgerNFno factor TF: 73-74
2021-08-24TheJudgerNFno factor TF: 72-73
2021-08-24TheJudgerNFno factor TF: 71-72
2021-05-11mikrNFno factor TF: 70-71
2017-04-19ramgeisNFno factor TF: 69-70
2012-07-25DubslowC-LLB21282C6702984EB
2012-01-02Carsten KossendeyNFno factor TF: 68-69
2011-10-11Carsten KossendeyNFno factor TF: 67-68
2005-03-20-anonymous-C-LLB21282C6702984EB
2005-03-06-anonymous-NF-PM1B1=280000, B2=3080000
2004-09-14n1ffNFno factor TF: 1-67
2004-09-02n1ffNFno factor TF: 1-67
2004-07-02-anonymous-NFno factor TF: 1-62
2004-06-04-anonymous-NFno factor TF: 1-61