332 240 717 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 =	3345000
B2 =	91151250

Status	Date	User	Residue	Shift	Software
Unverified	2016-10-05	Bernard van der Helm	C32902E1380236__	257157484	CUDALucas v2.05.1

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-03-01	Mark Rose	NF	no factor TF: 80-81
2023-03-01	Mark Rose	NF	no factor TF: 79-80
2023-03-01	Mark Rose	NF	no factor TF: 78-79
2021-03-31	Random GPUs	NF	no factor TF: 77-78
2016-10-05	Bernard van der Helm	C-LL	C32902E1380236__
2011-11-06	Lebedev_Nikolai	NF	no factor TF: 76-77
2011-10-17	Lebedev_Nikolai	NF-PM1	B1=3345000, B2=91151250
2011-05-30	Lebedev_Nikolai	NF	no factor TF: 75-76
2011-05-21	Lebedev_Nikolai	NF	no factor TF: 74-75
2011-05-15	Christian Geschwentner	NF	no factor TF: 73-74
2011-04-28	Christian Geschwentner	NF	no factor TF: 72-73
2010-11-26	Team_Inspector	NF	no factor TF: 71-72
2010-10-31	Team_Inspector	NF	no factor TF: 70-71
2009-05-16	Team_Inspector	NF	no factor TF: 69-70
2009-02-03	Team_Inspector	NF	no factor TF: 68-69