332 407 697 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	2015-09-11	ANONYMOUS	503F142A204F76__	11051	CUDALucas v2.05 Beta

History

Date	User	Type	Result
2023-05-16	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
2023-02-10	Mark Rose	NF	no factor TF: 78-79
2021-07-03	Jon Pace	NF	no factor TF: 77-78
2020-08-08	George Woltman	NF	no factor TF: 76-77
2015-09-11	ANONYMOUS	C-LL	503F142A204F76__
2015-02-17	Jacques MOLNE	NF	no factor TF: 75-76
2015-02-13	Jacques MOLNE	NF	no factor TF: 74-75
2015-01-31	Xebecer	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
2012-10-09	kracker	NF	no factor TF: 70-71
2012-06-30	LaurV	NF	no factor TF: 69-70
2011-04-15	Grant McCracken	NF	no factor TF: 68-69
2011-04-14	Grant McCracken	NF	no factor TF: 67-68