332 320 861 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Tested as composite (unverified, reliable): unconfirmed PRP test says not-prime

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	2734000
B2 =	298071930

Status	Proof	Date	User	Residue	Shift	Type	Base
Reliable	PRP without proof (not generated)	2021-09-30	adamgm	465B48415BD450__	0	1	3

History

Date	User	Type	Result
2025-09-18	James Heinrich	NF-PM1	B1=2734000, B2=298071930
2024-10-02	Grant McCracken	NF	no factor TF: 71-72
2024-02-15	Grant McCracken	NF	no factor TF: 70-71
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-12	Mark Rose	NF	no factor TF: 80-81
2021-09-30	adamgm	C-PRP	465B48415BD450__
2018-12-11	Klaus Nordmann	NF-PM1	B1=3615000
2016-04-05	dh1	NF	no factor TF: 79-80
2016-04-05	dh1	NF	no factor TF: 78-79
2016-04-05	dh1	NF	no factor TF: 77-78
2016-04-05	dh1	NF	no factor TF: 76-77
2016-02-13	Team_Inspector	NF	no factor TF: 75-76
2015-03-26	Team_Inspector	NF	no factor TF: 74-75
2013-10-29	Team_Inspector	NF	no factor TF: 73-74
2013-01-16	LaurV	NF	no factor TF: 72-73
2012-05-24	Grant McCracken	NF	no factor TF: 71-72
2011-06-05	Grant McCracken	NF	no factor TF: 70-71
2010-05-25	Grant McCracken	NF	no factor TF: 69-70
2009-09-08	Team_Inspector	NF	no factor TF: 68-69