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
50841881TF
No factors below 274
TF target 273
P-1
B1 = 610000
B2 = 19520000
LL
StatusDateUserResidueShift
Verified2012-06-28forrest-lumpkinE7ABD880F7CAAB193605365
Verified2019-01-31frolyarE7ABD880F7CAAB1944261269
History
DateUserTypeResult
2019-01-31frolyarC-LL
E7ABD880F7CAAB19
2018-10-01Mark RoseNF
no factor from 2^73 to 2^74
2015-12-21AirSquirrelsNF
no factor from 2^72 to 2^73
2012-06-28forrest-lumpkinC-LL
E7ABD880F7CAAB19
2012-03-19Serge BatalovNF
no factor from 2^71 to 2^72
2012-03-19Serge BatalovNF
no factor from 2^70 to 2^71
2012-03-19Serge BatalovNF
no factor from 2^69 to 2^70
2009-08-29-Anonymous-NF
no factor from 2^68 to 2^69
2009-08-17Sturle SundeNF-PM1
B1=610000, B2=19520000, E=6
2009-08-12-Anonymous-NF
no factor from 2^67 to 2^68
2008-12-02tmorrowNF
no factor from 2^66 to 2^67
2008-11-30tmorrowNF
no factor from 2^65 to 2^66
2008-11-29Houd Al-ObaidliNF
no factor from 2^64 to 2^65
2008-09-26DerekNF
no factor to 2^64