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:





MnDetails
41265361
Composite: proven not-prime with Lucas-Lehmer test
No factors below 273
TF target 272
P-1
B1 = 480000
B2 = 12240000
LL
StatusDateUserResidueShiftSoftware
Bad2008-05-11Dennis Harkins443A276FFA67A24834703066Windows 64-bit,Prime95,v24 final,(aka Wc4)
Verified2016-08-04rudimeier7F56637F7787D2E811773093Linux 64-bit,Prime95,v28.9,build 2
Verified2016-09-25Mark Rose7F56637F7787D2E820325751Linux 64-bit,Prime95,v28.9,build 2
History
DateUserTypeResult
2024-06-25GregNFno factor TF: 69-70
2022-05-10Sid & AndyNFno factor TF: 72-73
2016-09-25Mark RoseC-LL7F56637F7787D2E8
2016-08-04rudimeierC-LL7F56637F7787D2E8
2015-08-21AirSquirrelsNFno factor TF: 71-72
2015-02-05garoNFno factor TF: 70-71
2015-01-25krackerNFno factor TF: 69-70
2008-05-10-anonymous-C-LL443A276FFA67A248
2008-03-03-anonymous-NF-PM1B1=480000, B2=12240000
2007-03-04-anonymous-NFno factor TF: 1-69