332 345 381 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 =	3360000
B2 =	91560000

Status	Proof	Date	User	Residue	Shift	Type	Base
Reliable	PRP without proof (not generated)	2022-06-19	mashisu	75C47B4E42BD18__	268545716	1	3

History

Date	User	Type	Result
2024-03-05	Grant McCracken	NF	no factor TF: 68-69
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-29	Mark Rose	NF	no factor TF: 80-81
2023-03-29	Mark Rose	NF	no factor TF: 79-80
2023-01-24	Mark Rose	NF	no factor TF: 78-79
2022-06-19	mashisu	C-PRP	75C47B4E42BD18__
2021-05-31	Jon Pace	NF	no factor TF: 77-78
2015-06-26	Andi Mars	NF	no factor TF: 76-77
2015-06-10	Andi Mars	NF-PM1	B1=3360000, B2=91560000
2014-09-16	Andi Mars	NF	no factor TF: 75-76
2014-04-28	Preben S	NF	no factor TF: 74-75
2014-03-23	Phantomas	NF	no factor TF: 73-74
2013-01-20	LaurV	NF	no factor TF: 72-73
2012-10-13	Grant McCracken	NF	no factor TF: 71-72
2011-03-10	Grant McCracken	NF	no factor TF: 70-71
2010-12-22	Sunfish	NF	no factor TF: 69-70
2010-04-11	Sunfish	NF	no factor TF: 68-69