137 555 521 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 =	1033000
B2 =	403141830

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=9	2025-03-19	ky0uraku	3DBF563E82319BD6	108201034	1	3

History

Date	User	Type	Result
2025-03-19	CaptainEntropy	CERT	Proof certified good
2025-03-19	ky0uraku	C-PRP	Proof Certified Good Proof Power: 9
2024-09-19	Resolver	NF-PM1	B1=1033000, B2=403141830
2024-07-20	Richard	NF	no factor TF: 76-77
2024-07-12	SRBase	NF	no factor TF: 75-76
2023-01-12	SRBase	NF	no factor TF: 74-75
2021-08-05	SRBase	NF	no factor TF: 73-74
2020-10-23	SRBase	NF	no factor TF: 72-73
2016-11-09	Andrew B	NF	no factor TF: 71-72
2016-05-07	William Wallace	NF	no factor TF: 70-71
2016-04-16	TheGazMan	NF	no factor TF: 70-71
2016-04-03	TheGazMan	NF	no factor TF: 69-70
2016-03-31	dbaugh	NF	no factor TF: 68-69
2016-02-27	dbaugh	NF	no factor TF: 67-68
2015-02-04	poweredge	NF	no factor TF: 66-67
2012-11-13	kracker	NF	no factor TF: 65-66
2011-02-05	runesk	NF	no factor TF: 64-65
2010-06-11	Torchwood Institute	NF	no factor TF: 63-64