138 676 331 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 =	1170000
B2 =	1170060870

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2025-01-10	Dmitry Bolshakov	64EBF87FD8050517	0	1	3

History

Date	User	Type	Result
2025-01-11	Alexander Sortov	CERT	Proof certified good
2025-01-10	Dmitry Bolshakov	C-PRP	64EBF87FD8050517 Proof Certified Good Proof Power: 8
2024-09-21	Luke Durant	NF-PM1	B1=1170000, B2=1170060870
2024-08-03	Luke Durant	NF	no factor TF: 76-77
2024-07-13	SRBase	NF	no factor TF: 75-76
2023-01-19	SRBase	NF	no factor TF: 74-75
2021-08-02	SRBase	NF	no factor TF: 73-74
2020-11-16	SRBase	NF	no factor TF: 72-73
2017-02-17	NoWhereMan	NF	no factor TF: 71-72
2017-02-15	NoWhereMan	NF	no factor TF: 70-71
2017-02-14	proxy2222	NF	no factor TF: 69-70
2017-01-25	proxy2222	NF	no factor TF: 68-69
2016-03-02	dbaugh	NF	no factor TF: 67-68
2015-01-31	el grocco	NF	no factor TF: 66-67
2012-11-19	sasaki3	NF	no factor TF: 65-66
2010-12-05	Holger Wiesmann	NF	no factor TF: 64-65
2010-06-12	qwertyuio999	NF	no factor TF: 63-64