138 011 173 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 =	1162000
B2 =	1201342230

Status	Date	User	Residue	Shift	Type	Base
Verified	2025-03-18	mewturn	661079C197EAE1E4	0	1	3

History

Date	User	Type	Result
2025-03-18	COMPUTRON9001	CERT	PRP Certification CERT proof power = 7 Proof certified good
2025-03-18	mewturn	C-PRP	661079C197EAE1E4 PRP proof power = 7 PRP: Verified Proof certified good
2024-09-19	Luke Durant	NF-PM1	B1=1162000, B2=1201342230
2024-07-28	Luke Durant	NF	no factor from 2^76 to 2^77
2024-07-14	SRBase	NF	no factor from 2^75 to 2^76
2023-01-12	SRBase	NF	no factor from 2^74 to 2^75
2021-07-31	SRBase	NF	no factor from 2^73 to 2^74
2020-10-23	SRBase	NF	no factor from 2^72 to 2^73
2016-02-23	dbaugh	NF	no factor from 2^71 to 2^72
2016-02-17	dbaugh	NF	no factor from 2^70 to 2^71
2014-12-28	La Güira	NF	no factor from 2^69 to 2^70
2014-12-28	La Güira	NF	no factor from 2^68 to 2^69
2014-12-28	La Güira	NF	no factor from 2^67 to 2^68
2014-12-03	snme2pm1	NF	no factor from 2^66 to 2^67
2012-11-16	bwn	NF	no factor from 2^65 to 2^66
2010-12-05	Anton	NF	no factor from 2^64 to 2^65
2010-06-11	sasaki3	NF	no factor from 2^63 to 2^64