139 158 919 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 =	1181000
B2 =	1251400260

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2026-02-16	curtisc	EB3812B783A49A19	132038767	1	3

History

Date	User	Type	Result
2026-02-16	Sage Russell	CERT	Proof certified good
2026-02-16	curtisc	C-PRP	Proof Certified Good Proof Power: 8
2024-09-22	Luke Durant	NF-PM1	B1=1181000, B2=1251400260
2024-08-09	Luke Durant	NF	no factor TF: 76-77
2024-07-18	SRBase	NF	no factor TF: 75-76
2023-01-16	SRBase	NF	no factor TF: 74-75
2021-08-03	SRBase	NF	no factor TF: 73-74
2020-10-23	SRBase	NF	no factor TF: 72-73
2016-08-20	Andrew B	NF	no factor TF: 71-72
2016-08-17	Derek	NF	no factor TF: 70-71
2016-08-17	Derek	NF	no factor TF: 69-70
2016-08-17	Derek	NF	no factor TF: 68-69
2016-08-13	proxy2222	NF	no factor TF: 67-68
2015-02-09	fireredd	NF	no factor TF: 66-67
2013-01-20	sannerud.com	NF	no factor TF: 65-66
2010-12-07	Richard	NF	no factor TF: 64-65
2010-06-23	Richard	NF	no factor TF: 63-64