332 361 553 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 =	3105000
B2 =	92373750

Status	Proof	Date	User	Residue	Shift	Type	Base
Reliable	PRP without proof (not generated)	2020-04-03	LWN	3271A7962627C9__	68757881	1	3

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-31	Mark Rose	NF	no factor TF: 80-81
2023-03-31	Mark Rose	NF	no factor TF: 79-80
2023-01-28	Mark Rose	NF	no factor TF: 78-79
2022-05-04	Jon Pace	NF	no factor TF: 77-78
2020-04-03	LWN	C-PRP	3271A7962627C9__
2020-03-03	LWN	NF-PM1	B1=3105000, B2=92373750
2019-11-28	Siarhei P. 😜	NF	no factor TF: 76-77
2016-11-27	Team_Inspector	NF	no factor TF: 75-76
2015-11-23	Team_Inspector	NF	no factor TF: 74-75
2015-05-03	Team_Inspector	NF	no factor TF: 73-74
2011-04-22	Christian Geschwentner	NF	no factor TF: 72-73
2010-12-29	vats09	NF	no factor TF: 71-72
2010-10-31	Grant McCracken	NF	no factor TF: 70-71
2010-09-29	Grant McCracken	NF	no factor TF: 69-70
2010-01-18	Grant McCracken	NF	no factor TF: 68-69