123 969 143 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 =	1000000
B2 =	357129150

Status	Date	User	Residue	Shift	Type	Base
Verified	2024-10-18	Cheez Pizza	A4BA785DCDE09A36	0	1	3

History

Date	User	Type	Result
2024-10-18	Xyzzy	CERT	PRP Certification CERT proof power = 10 Proof certified good
2024-10-18	Cheez Pizza	C-PRP	A4BA785DCDE09A36 PRP proof power = 10 PRP: Verified Proof certified good
2024-10-14	timc995	NF-PM1	B1=1000000, B2=357129150
2024-02-27	RJ10130305	NF-PM1	B1=711000
2022-07-02	TheJudger	NF	no factor from 2^76 to 2^77
2021-08-31	Kriesel	NF	no factor from 2^75 to 2^76
2020-11-01	tsc	NF	no factor from 2^74 to 2^75
2019-06-01	Niels_Mache_Nextcloud	NF	no factor from 2^73 to 2^74
2019-06-01	Niels_Mache_Nextcloud	NF	no factor from 2^72 to 2^73
2015-09-04	SMoffat	NF	no factor from 2^71 to 2^72
2015-08-17	ANONYMOUS	NF	no factor from 2^70 to 2^71
2015-06-18	Judge Hale	NF	no factor from 2^69 to 2^70
2015-06-18	Judge Hale	NF	no factor from 2^68 to 2^69
2015-06-18	Judge Hale	NF	no factor from 2^67 to 2^68
2014-11-18	sasaki	NF	no factor from 2^66 to 2^67
2012-08-31	GunnarLu	NF	no factor from 2^65 to 2^66
2010-10-28	Mr-Plonk	NF	no factor from 2^64 to 2^65
2010-05-22	oodaira	NF	no factor from 2^63 to 2^64