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
154572247No known factors, not tested for primality
TF
No factors below 278
TF target 278
P-1
B1 = 903000
B2 = 86576028
History
DateUserTypeResult
2025-06-23brian-nebiusNF
no factor from 2^77 to 2^78
2025-06-05Ryan PropperNF-PM1
B1=903000, B2=86576028
2024-12-11linearNF
no factor from 2^76 to 2^77
2024-08-13SRBaseNF
no factor from 2^75 to 2^76
2017-06-10PEDNF
no factor from 2^74 to 2^75
2017-06-10PEDNF
no factor from 2^73 to 2^74
2017-06-10PEDNF
no factor from 2^72 to 2^73
2017-06-10PEDNF
no factor from 2^71 to 2^72
2017-06-10PEDNF
no factor from 2^70 to 2^71
2016-09-20Choi4KANGNF
no factor from 2^69 to 2^70
2016-08-05Choi4KANGNF
no factor from 2^68 to 2^69
2016-05-02rubikvn2100NF
no factor from 2^67 to 2^68
2015-04-08guruNF
no factor from 2^66 to 2^67
2013-02-02RichardNF
no factor from 2^65 to 2^66
2011-01-21OS1NF
no factor from 2^64 to 2^65
2010-06-29RichardNF
no factor from 2^63 to 2^64