123 917 383 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with PRP test

No factors below 2⁷⁷

TF target 2⁷⁷

P-1

B1 =	952000
B2 =	30821175

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2024-10-13	Luke Durant	63CE8B50987832A8	0	1	3
Verified	Certified Good Power=9	2024-12-23	alan145	63CE8B50987832A8	122680664	1	3

History

Date	User	Type	Result
2024-12-23	Fabrice Bellet	CERT	Proof certified good
2024-12-23	alan145	C-PRP	Proof Certified Good Proof Power: 9
2024-10-13	tuxrunner	CERT	Proof certified good
2024-10-13	Luke Durant	C-PRP	Proof Certified Good Proof Power: 8
2022-06-22	LOBES	NF	no factor TF: 76-77
2022-04-21	LOBES	NF	no factor TF: 75-76
2022-04-21	onlinegame	NF	no factor TF: 74-75
2022-04-21	One Man	NF-PM1	B1=952000, B2=30821175
2019-06-07	Niels_Mache_Nextcloud	NF	no factor TF: 72-73
2019-06-07	Niels_Mache_Nextcloud	NF	no factor TF: 73-74
2016-02-16	tinnderbox	NF	no factor TF: 71-72
2016-02-14	el grocco	NF	no factor TF: 70-71
2015-06-17	Judge Hale	NF	no factor TF: 69-70
2015-06-17	Judge Hale	NF	no factor TF: 68-69
2015-06-17	Judge Hale	NF	no factor TF: 67-68
2014-11-18	sasaki	NF	no factor TF: 66-67
2012-08-31	sasaki3	NF	no factor TF: 65-66
2010-10-27	Charles A. Morris	NF	no factor TF: 64-65
2010-05-22	sasaki3	NF	no factor TF: 63-64