332 328 889 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 =	3170000
B2 =	93515000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2022-06-25	Deckard Lain	CFC3B47B085EDF15	13693738	1	3

History

Date	User	Type	Result
2024-02-21	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-23	Mark Rose	NF	no factor TF: 80-81
2023-03-23	Mark Rose	NF	no factor TF: 79-80
2023-01-22	Mark Rose	NF	no factor TF: 78-79
2022-07-08	Jan S.	CERT	Proof certified good
2022-06-25	Deckard Lain	C-PRP	Proof Certified Good Proof Power: 8
2022-05-01	Jon Pace	NF	no factor TF: 77-78
2020-10-23	Deckard Lain	NF	no factor TF: 76-77
2019-09-18	Deckard Lain	NF-PM1	B1=3170000, B2=93515000
2016-04-14	Team_Inspector	NF	no factor TF: 75-76
2014-04-20	Preben S	NF	no factor TF: 74-75
2014-01-01	Team_Inspector	NF	no factor TF: 73-74
2013-01-18	LaurV	NF	no factor TF: 72-73
2012-06-29	Team_Inspector	NF	no factor TF: 71-72
2011-05-01	Grant McCracken	NF	no factor TF: 70-71
2010-12-18	Sunfish	NF	no factor TF: 69-70
2010-04-04	Grant McCracken	NF	no factor TF: 68-69