Marin Mersenne 2^P-1
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Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

Exponent Range:










MnStatusDetails
156133937No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 1121000
B2 = 450512790
History
DateUserTypeResult
2025-09-08Simon JosefssonNF-PM1
B1=1121000, B2=450512790
2025-05-24RichardNF
no factor from 2^77 to 2^78
2024-11-02zhangstNF
no factor from 2^76 to 2^77
2024-08-15SRBaseNF
no factor from 2^75 to 2^76
2023-02-18SRBaseNF
no factor from 2^74 to 2^75
2012-05-01america64NF
no factor from 2^73 to 2^74
2012-05-01america64NF
no factor from 2^72 to 2^73
2012-05-01america64NF
no factor from 2^71 to 2^72
2012-03-29america64NF
no factor from 2^70 to 2^71
2012-03-11america64NF
no factor from 2^69 to 2^70
2012-03-11america64NF
no factor from 2^68 to 2^69
2012-03-03america64NF
no factor from 2^67 to 2^68
2012-02-29america64NF
no factor from 2^66 to 2^67
2012-02-28america64NF
no factor from 2^65 to 2^66
2011-01-24Thomas StorkNF
no factor from 2^64 to 2^65