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

PrimeNet Exponent Status

Exponent Range:





MnDetails
68199017
Composite: proven not-prime with Lucas-Lehmer test
No factors below 275
TF target 274
P-1
B1 = 625000
B2 = 12812500
LL
StatusDateUserResidueShiftSoftware
Verified2016-01-06Kyle Z Schmidt50DA7E1C82DF270911642033Windows 64-bit,Prime95,v28.5,build 2
Verified2023-07-24Ryan Propper50DA7E1C82DF270962226503Linux 64-bit,Prime95,v29.5,(aka Wh8)
History
DateUserTypeResult
2023-07-24Ryan PropperC-LL50DA7E1C82DF2709
2016-01-06Kyle Z SchmidtC-LL50DA7E1C82DF2709
2015-12-14ChuckNFno factor TF: 74-75
2014-07-27TheJudgerNF-PM1B1=625000, B2=12812500, E=12
2014-07-20TheJudgerNFno factor TF: 73-74
2014-07-16BdotNFno factor TF: 72-73
2014-07-06RichD0NFno factor TF: 71-72
2012-10-07Clown_RoyalNFno factor TF: 70-71
2012-03-06eon_blue_apocalypseNFno factor TF: 69-70
2011-03-31MarzbugNFno factor TF: 68-69
2011-03-25EPFNFno factor TF: 67-68
2010-12-30EPFNFno factor TF: 66-67
2010-10-23EPFNFno factor TF: 65-66
2010-08-15-anonymous-NFno factor TF: 64-65
2008-12-081997rj7NFno factor TF: 1-64
2000-10-07JossNFno factor TF: 1-51