332 248 181 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 =	3910000
B2 =	3910000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	Certified Good Power=8	2022-10-02	Chelle	9233A9CB902DFF3C	92290316	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-19	Mark Rose	NF	no factor TF: 80-81
2023-03-19	Mark Rose	NF	no factor TF: 79-80
2022-10-05	Jan S.	CERT	Proof certified good
2022-10-02	Chelle	C-PRP	9233A9CB902DFF3C Proof Certified Good Proof Power: 8
2017-02-12	Hutch	NF-PM1	B1=3910000
2013-10-28	Bill Staffen	NF	no factor TF: 78-79
2013-10-28	Bill Staffen	NF	no factor TF: 77-78
2013-10-23	Bill Staffen	NF	no factor TF: 76-77
2013-10-21	Bill Staffen	NF	no factor TF: 75-76
2013-05-22	kracker	NF	no factor TF: 74-75
2011-09-10	Team_Inspector	NF	no factor TF: 73-74
2011-05-26	Team_Inspector	NF	no factor TF: 72-73
2011-04-26	Christian Geschwentner	NF	no factor TF: 71-72
2010-10-18	Team_Inspector	NF	no factor TF: 70-71
2009-04-03	Team_Inspector	NF	no factor TF: 69-70
2009-02-21	Team_Inspector	NF	no factor TF: 68-69