139 908 677 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 =	1191000
B2 =	1296224160

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-05-02	Yves	4CEA3110CF005EF9	115352563	1	3

History

Date	User	Type	Result
2025-05-03	JB	CERT	PRP Certification CERT proof power = 8 Proof certified good
2025-05-02	Yves	C-PRP	4CEA3110CF005EF9 PRP proof power = 8 PRP: Verified Proof certified good
2024-09-25	Luke Durant	NF-PM1	B1=1191000, B2=1296224160
2024-08-19	Luke Durant	NF	no factor from 2^76 to 2^77
2024-07-21	SRBase	NF	no factor from 2^75 to 2^76
2024-07-10	Joe S.	NF	no factor from 2^69 to 2^70
2024-07-10	Joe S.	NF	no factor from 2^68 to 2^69
2023-01-29	SRBase	NF	no factor from 2^74 to 2^75
2021-09-11	LordJulius	NF	no factor from 2^73 to 2^74
2020-10-23	SRBase	NF	no factor from 2^72 to 2^73
2017-02-21	workerthread	NF	no factor from 2^71 to 2^72
2017-02-14	workerthread	NF	no factor from 2^70 to 2^71
2016-08-30	Derek	NF	no factor from 2^69 to 2^70
2016-08-30	Derek	NF	no factor from 2^68 to 2^69
2016-08-17	Mr-Plonk	NF	no factor from 2^67 to 2^68
2015-02-12	fireredd	NF	no factor from 2^66 to 2^67
2012-11-25	HardyP Germany	NF	no factor from 2^65 to 2^66
2010-12-09	Richard	NF	no factor from 2^64 to 2^65
2010-06-13	Ali	NF	no factor from 2^63 to 2^64