332 327 419 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Tested as composite (unverified): unconfirmed Lucas-Lehmer test says not-prime

TF

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	4785673
B2 =	33385000

Status	Date	User	Residue	Shift
Unverified	2015-02-10	Shnobel	631EACF5F5E65B__	174371927

Assigned

Assigned	User	Work Type	Stage	% Done	Updated	Expired
2024-11-16	-Anonymous-	LL double-check		0.00 %	2024-11-16

History

Date	User	Type	Result
2024-02-21	Grant McCracken	NF	no factor from 2^68 to 2^69
2023-10-18	James Heinrich	NF	no factor from 2^67 to 2^68
2023-02-27	Mark Rose	NF	no factor from 2^80 to 2^81
2022-09-22	Naegi Makoto	NF	no factor from 2^79 to 2^80
2022-09-21	Naegi Makoto	NF	no factor from 2^78 to 2^79
2022-05-01	Jon Pace	NF	no factor from 2^77 to 2^78
2015-02-10	Shnobel	C-LL	631EACF5F5E65B__
2014-07-31	Shnobel	NF	no factor from 2^76 to 2^77
2014-07-23	Shnobel	NF-PM1	B1=4785673, B2=33385000
2014-07-07	Shnobel	NF	no factor from 2^75 to 2^76
2014-04-20	Preben S	NF	no factor from 2^74 to 2^75
2013-12-25	Team_Inspector	NF	no factor from 2^73 to 2^74
2013-01-17	LaurV	NF	no factor from 2^72 to 2^73
2012-07-07	Grant McCracken	NF	no factor from 2^71 to 2^72
2011-05-17	Grant McCracken	NF	no factor from 2^70 to 2^71
2010-12-12	Sunfish	NF	no factor from 2^69 to 2^70
2010-04-03	Grant McCracken	NF	no factor from 2^68 to 2^69