137 479 423 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	2025-03-04	Mirra	17C891079EDC21B0	0	1	3

History

Date	User	Type	Result
2025-03-04	feather	CERT	Proof certified good
2025-03-04	Mirra	C-PRP	17C891079EDC21B0 Proof Certified Good Proof Power: 9
2024-09-17	Ryan Propper	NF-PM1	B1=676000, B2=31127040
2024-07-28	Luke Durant	NF	no factor TF: 76-77
2024-06-18	JacobZ	NF	no factor TF: 75-76
2023-01-12	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
2016-09-15	nate.anders	NF	no factor TF: 71-72
2016-09-13	nate.anders	NF	no factor TF: 70-71
2016-03-10	dbaugh	NF	no factor TF: 69-70
2016-02-17	dbaugh	NF	no factor TF: 68-69
2016-02-10	ssateneth	NF	no factor TF: 67-68
2015-02-04	Fuessler	NF	no factor TF: 66-67
2012-11-12	sasaki3	NF	no factor TF: 65-66
2010-11-30	sasaki3	NF	no factor TF: 64-65
2010-06-11	Charles A. Morris	NF	no factor TF: 63-64