332 401 661 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 =	1565000
B2 =	354419940

Status	Date	User	Residue	Shift	Software
Unverified	2017-02-12	AirSquirrels	21FDF367C13C03__	185530096	CUDALucas v2.05.1

History

Date	User	Type	Result
2023-05-11	Mark Rose	NF-PM1	B1=1565000, B2=354419940
2023-02-10	Mark Rose	NF	no factor TF: 80-81
2023-02-10	Mark Rose	NF	no factor TF: 79-80
2023-01-19	bayanne	NF	no factor TF: 78-79
2021-06-30	Jon Pace	NF	no factor TF: 77-78
2020-08-07	Andrew B	NF	no factor TF: 76-77
2017-02-12	AirSquirrels	C-LL	21FDF367C13C03__
2015-02-02	Jacques MOLNE	NF	no factor TF: 75-76
2015-01-27	Xebecer	NF	no factor TF: 74-75
2015-01-16	Team_Inspector	NF	no factor TF: 73-74
2013-01-25	LaurV	NF	no factor TF: 72-73
2013-01-25	LaurV	NF	no factor TF: 71-72
2011-06-09	rduerr	NF	no factor TF: 68-71
2010-04-02	Team_Inspector	NF	no factor TF: 67-68