332 198 557 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 2⁸¹

TF target 2⁸¹

P-1

B1 =	3000000
B2 =	79500000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=7	2026-01-17	Simon Josefsson	C05FD3637E885875	226829141	1	3

History

Date	User	Type	Result
2026-01-17	Kriesel	CERT	Proof certified good
2026-01-17	Simon Josefsson	C-PRP	C05FD3637E885875 Proof Certified Good Proof Power: 7
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-12	Architects Cubed	NF	no factor TF: 80-81
2021-01-24	Random GPUs	NF	no factor TF: 79-80
2015-06-23	aurashift	NF-PM1	B1=3000000, B2=79500000, E=12
2011-05-01	amphoria	NF	no factor TF: 78-79
2011-05-01	amphoria	NF	no factor TF: 77-78
2011-05-01	amphoria	NF	no factor TF: 76-77
2011-01-07	Aaron Haviland	NF	no factor TF: 75-76
2009-03-24	Cherry Ames	NF	no factor TF: 74-75
2008-12-31	Kevin	NF	no factor TF: 73-74
2008-12-24	Kevin	NF	no factor TF: 72-73
2008-12-20	Team_Inspector	NF	no factor TF: 71-72
2008-12-19	Team_Inspector	NF	no factor TF: 70-71
2008-10-29	Team_Inspector	NF	no factor TF: 69-70
2008-10-29	Team_Inspector	NF	no factor TF: 68-69