139 455 557 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with PRP test

TF

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	814000
B2 =	82171530

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-02-20	Will K	9D76E8347288FBE1	0	1	3

History

Date	User	Type	Result
2025-02-20	Will Edgington	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-02-20	Will K	C-PRP	9D76E8347288FBE1 PRP proof power = 10 PRP: Verified Proof certified good
2024-09-24	Ryan Propper	NF-PM1	B1=814000, B2=82171530
2024-07-16	mezon	NF	no factor from 2^76 to 2^77
2024-07-13	mezon	NF	no factor from 2^75 to 2^76
2023-01-16	SRBase	NF	no factor from 2^74 to 2^75
2021-08-04	SRBase	NF	no factor from 2^73 to 2^74
2020-11-22	SRBase	NF	no factor from 2^72 to 2^73
2017-03-07	EPF	NF	no factor from 2^71 to 2^72
2017-02-24	proxy2222	NF	no factor from 2^70 to 2^71
2016-08-20	Derek	NF	no factor from 2^69 to 2^70
2016-08-20	Derek	NF	no factor from 2^68 to 2^69
2016-08-16	-Anonymous-	NF	no factor from 2^67 to 2^68
2015-02-10	vwflat4	NF	no factor from 2^66 to 2^67
2012-11-29	Richard	NF	no factor from 2^65 to 2^66
2010-12-06	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-06-13	em99010pepe	NF	no factor from 2^63 to 2^64