137 365 271 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	676000
B2 =	31127040

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=9	2025-02-03	Mirra	56BF0E7EC35124D9	0	1	3

History

Date	User	Type	Result
2025-02-03	Stephan Grupp	CERT	Proof certified good
2025-02-03	Mirra	C-PRP	Proof Certified Good Proof Power: 9
2024-09-16	Ryan Propper	NF-PM1	B1=676000, B2=31127040
2024-08-04	JacobZ	NF	no factor TF: 76-77
2024-07-16	JacobZ	NF	no factor TF: 75-76
2023-01-11	SRBase	NF	no factor TF: 74-75
2021-07-31	SRBase	NF	no factor TF: 73-74
2020-10-27	SRBase	NF	no factor TF: 72-73
2016-06-07	CSLatDD	NF	no factor TF: 71-72
2016-05-31	CSLatDD	NF	no factor TF: 70-71
2016-05-26	Choi4KANG	NF	no factor TF: 69-70
2016-04-03	Choi4KANG	NF	no factor TF: 68-69
2016-02-19	dbaugh	NF	no factor TF: 67-68
2015-02-03	Brandon	NF	no factor TF: 66-67
2012-11-16	Richard	NF	no factor TF: 65-66
2010-11-30	Torchwood Institute	NF	no factor TF: 64-65