332 331 059 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 =	1900000
B2 =	80000000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=9	2026-02-21	fre_games	3887FCA3AB92EB0B	0	1	3

History

Date	User	Type	Result
2026-02-21	Cimaron	CERT	Proof certified good
2026-02-21	fre_games	C-PRP	3887FCA3AB92EB0B Proof Certified Good Proof Power: 9
2024-02-23	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2021-06-23	Kriesel	NF-PM1	B1=1900000, B2=80000000
2021-06-23	Kriesel	NF	no factor TF: 80-81
2021-06-23	Kriesel	NF	no factor TF: 79-80
2021-06-23	Kriesel	NF	no factor TF: 78-79
2021-05-25	Jon Pace	NF	no factor TF: 77-78
2020-07-31	el grocco	NF	no factor TF: 76-77
2011-08-14	Eric Christenson	NF	no factor TF: 75-76
2011-07-13	Sebastian Hornbostel	NF	no factor TF: 74-75
2011-07-04	blakekelly	NF	no factor TF: 73-74
2011-06-30	blakekelly	NF	no factor TF: 72-73
2011-05-13	Grant McCracken	NF	no factor TF: 71-72
2011-04-10	Grant McCracken	NF	no factor TF: 70-71
2010-12-27	Sunfish	NF	no factor TF: 69-70
2009-11-10	Grant McCracken	NF	no factor TF: 68-69