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
142808249No known factors, not tested for primality
TF
No factors below 277
TF target 277
P-1
B1 = 1209000
B2 = 1476652980
Assigned
AssignedUserWork TypeStage% DoneUpdatedExpired
2025-09-14-Anonymous-PRP test0.00 % 2025-09-14
History
DateUserTypeResult
2024-10-04Luke DurantNF-PM1
B1=1209000, B2=1476652980
2024-09-30RichardNF
no factor from 2^76 to 2^77
2016-11-23Mausbieber_GuckyNF
no factor from 2^75 to 2^76
2016-11-23Mausbieber_GuckyNF
no factor from 2^74 to 2^75
2016-11-23Mausbieber_GuckyNF
no factor from 2^73 to 2^74
2016-11-23Mausbieber_GuckyNF
no factor from 2^72 to 2^73
2016-11-23Mausbieber_GuckyNF
no factor from 2^71 to 2^72
2016-05-03La GüiraNF
no factor from 2^70 to 2^71
2016-04-25Smok_bmv NF
no factor from 2^69 to 2^70
2016-04-15Mihai PredaNF
no factor from 2^68 to 2^69
2016-03-31dbaughNF
no factor from 2^67 to 2^68
2015-02-24aurashiftNF
no factor from 2^66 to 2^67
2012-12-20RichardNF
no factor from 2^65 to 2^66
2010-12-18sasaki3NF
no factor from 2^64 to 2^65
2010-06-16Charles A. MorrisNF
no factor from 2^63 to 2^64