123 620 579 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 =	2000000
B2 =	3087654570

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-07-05	Luke Durant	AB8D294DD1ACD70D	0	1	3

History

Date	User	Type	Result
2024-07-05	Luke Durant	CERT	PRP Certification CERT proof power = 9 Proof certified good
2024-07-05	Luke Durant	C-PRP	AB8D294DD1ACD70D PRP proof power = 9 PRP: Verified Proof certified good
2024-05-18	Luke Durant	NF-PM1	B1=2000000, B2=3087654570
2022-06-30	TheJudger	NF	no factor from 2^76 to 2^77
2022-06-30	TheJudger	NF	no factor from 2^75 to 2^76
2022-05-03	rduerr	NF	no factor from 2^74 to 2^75
2019-07-06	Niels_Mache_Nextcloud	NF	no factor from 2^73 to 2^74
2019-07-06	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2015-08-29	SMoffat	NF	no factor from 2^71 to 2^72
2015-08-17	glebm	NF	no factor from 2^70 to 2^71
2015-06-13	Judge Hale	NF	no factor from 2^69 to 2^70
2015-06-13	Judge Hale	NF	no factor from 2^68 to 2^69
2015-06-13	Judge Hale	NF	no factor from 2^67 to 2^68
2014-11-12	sasaki	NF	no factor from 2^66 to 2^67
2012-08-28	sasaki3	NF	no factor from 2^65 to 2^66
2010-10-27	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-05-22	EPF	NF	no factor from 2^63 to 2^64