139 028 657 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 =	820000
B2 =	58913910

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-01-08	curtisc	52179EDC62E4A1AA	25040675	1	3

History

Date	User	Type	Result
2025-01-08	ChrisCallahan	CERT	PRP Certification CERT proof power = 8 Proof certified good
2025-01-08	curtisc	C-PRP	52179EDC62E4A1AA PRP proof power = 8 PRP: Verified Proof certified good
2024-08-26	Brent Goebel	NF	no factor from 2^76 to 2^77
2024-07-19	SRBase	NF	no factor from 2^75 to 2^76
2024-07-07	tsc	NF-PM1	B1=820000, B2=58913910
2023-01-15	SRBase	NF	no factor from 2^74 to 2^75
2021-08-03	SRBase	NF	no factor from 2^73 to 2^74
2020-10-23	SRBase	NF	no factor from 2^72 to 2^73
2016-08-20	Dennis Schreiber	NF	no factor from 2^71 to 2^72
2016-08-19	arnaud	NF	no factor from 2^70 to 2^71
2016-08-19	Dennis Schreiber	NF	no factor from 2^69 to 2^70
2016-08-18	Anrodion	NF	no factor from 2^68 to 2^69
2016-08-12	proxy2222	NF	no factor from 2^67 to 2^68
2015-02-08	fireredd	NF	no factor from 2^66 to 2^67
2012-11-21	Koekie	NF	no factor from 2^65 to 2^66
2010-12-06	Richard	NF	no factor from 2^64 to 2^65
2010-06-13	sasaki3	NF	no factor from 2^63 to 2^64