140 097 379 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 =	824000
B2 =	83081250

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-09-15	jerickson	6FFD864152146A4A	0	1	3

History

Date	User	Type	Result
2025-09-15	Team_Schaub	CERT	PRP Certification CERT proof power = 10 Proof certified good
2025-09-15	jerickson	C-PRP	6FFD864152146A4A PRP proof power = 10 PRP: Verified Proof certified good
2024-09-25	Ryan Propper	NF-PM1	B1=824000, B2=83081250
2024-08-26	ihnl	NF	no factor from 2^76 to 2^77
2023-09-20	tsc	NF	no factor from 2^75 to 2^76
2023-01-16	SRBase	NF	no factor from 2^74 to 2^75
2021-11-02	SRBase	NF	no factor from 2^73 to 2^74
2020-10-27	SRBase	NF	no factor from 2^72 to 2^73
2017-02-03	SourceBinary.com	NF	no factor from 2^71 to 2^72
2017-02-02	JoDu	NF	no factor from 2^70 to 2^71
2015-05-11	Judge Hale	NF	no factor from 2^69 to 2^70
2015-05-11	Judge Hale	NF	no factor from 2^68 to 2^69
2015-05-11	Judge Hale	NF	no factor from 2^67 to 2^68
2015-02-12	vapaddy	NF	no factor from 2^66 to 2^67
2012-12-02	Richard	NF	no factor from 2^65 to 2^66
2010-12-09	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-06-14	sasaki3	NF	no factor from 2^63 to 2^64