332 203 957 Exponent Status

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

PrimeNet Exponent Status

M_n

Details

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

No factors below 2⁸¹

TF target 2⁸¹

P-1

B1 =	3120000
B2 =	82680000

Status	Date	User	Residue	Shift	Software
Unverified	2018-08-13	Eratosthenes	19A4E5B4B6179E__	166109794	CUDALucas v2.05.1

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-08	Mark Rose	NF	no factor TF: 80-81
2023-02-08	Mark Rose	NF	no factor TF: 79-80
2023-02-08	Mark Rose	NF	no factor TF: 78-79
2018-08-13	Eratosthenes	C-LL	19A4E5B4B6179E__
2015-06-30	aurashift	NF-PM1	B1=3120000, B2=82680000
2015-06-06	srow7	NF	no factor TF: 77-78
2014-11-14	Team_Inspector	NF	no factor TF: 76-77
2011-09-05	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-09-05	Sebastian Hornbostel	NF	no factor TF: 74-75
2010-07-14	Team_Inspector	NF	no factor TF: 73-74
2010-01-09	Team_Inspector	NF	no factor TF: 72-73
2010-01-06	Team_Inspector	NF	no factor TF: 71-72
2009-03-06	Team_Inspector	NF	no factor TF: 70-71
2008-10-31	cnaTb_xo4y	NF	no factor TF: 69-70
2008-10-30	cnaTb_xo4y	NF	no factor TF: 68-69