332 198 197 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 2⁸²

TF target 2⁸¹

P-1

B1 =	4880000
B2 =	4880000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=7	2021-09-28	Simon Josefsson	AB94543938A6A598	65743944	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2021-09-30	curtisc	CERT	Proof certified good
2021-09-28	Simon Josefsson	C-PRP	AB94543938A6A598 Proof Certified Good Proof Power: 7
2020-08-13	Albrecht Heeffer	NF	no factor TF: 81-82
2020-08-13	Albrecht Heeffer	NF	no factor TF: 80-81
2020-08-12	Albrecht Heeffer	NF	no factor TF: 79-80
2016-05-27	-anonymous-	NF	no factor TF: 78-79
2015-03-04	Team_Inspector	NF	no factor TF: 77-78
2012-02-27	scrolllock	NF-PM1	B1=4880000
2010-07-14	NikolajII	NF	no factor TF: 76-77
2010-04-24	NikolajII	NF	no factor TF: 75-76
2010-02-13	Sunfish	NF	no factor TF: 74-75
2010-02-07	Sunfish	NF	no factor TF: 73-74
2009-10-08	Team_Inspector	NF	no factor TF: 72-73
2009-10-07	Team_Inspector	NF	no factor TF: 71-72
2009-01-12	Team_Inspector	NF	no factor TF: 70-71
2008-10-27	Team_Inspector	NF	no factor TF: 69-70
2008-10-27	Team_Inspector	NF	no factor TF: 68-69