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
152821169No known factors, not tested for primality
TF
No factors below 278
TF target 277
P-1
B1 = 948000
B2 = 127671600
History
DateUserTypeResult
2025-08-05Yu ZhuNF
no factor from 2^77 to 2^78
2025-01-15MartinZNF-PM1
B1=948000, B2=127671600
2025-01-07James HeinrichNF
no factor from 2^76 to 2^77
2024-08-07SRBaseNF
no factor from 2^75 to 2^76
2023-02-11SRBaseNF
no factor from 2^74 to 2^75
2021-11-14SRBaseNF
no factor from 2^73 to 2^74
2017-11-15David K BrittNF
no factor from 2^72 to 2^73
2017-05-23Sergey NosovNF
no factor from 2^70 to 2^72
2017-04-21La GüiraNF
no factor from 2^69 to 2^70
2017-02-28XolotlNF
no factor from 2^68 to 2^69
2016-04-25volovikNF
no factor from 2^67 to 2^68
2015-04-01vwflat4NF
no factor from 2^66 to 2^67
2013-01-24Mr-PlonkNF
no factor from 2^65 to 2^66
2011-01-19RichardNF
no factor from 2^64 to 2^65
2010-07-041997rj7NF
no factor from 2^63 to 2^64