332 217 443 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 =	5670000
B2 =	5670000

Status	Date	User	Residue	Shift	Software
Unverified	2019-10-22	Evgeniy Zavialov	B13E2D4733B390__	45	CUDALucas v2.06

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-17	Mark Rose	NF	no factor TF: 80-81
2023-02-17	Mark Rose	NF	no factor TF: 79-80
2023-02-17	Mark Rose	NF	no factor TF: 78-79
2019-10-22	Evgeniy Zavialov	C-LL	B13E2D4733B390__
2015-06-23	NR	NF	no factor TF: 77-78
2015-06-23	NR	NF	no factor TF: 76-77
2010-11-18	cloudmai	NF-PM1	B1=5670000
2010-08-03	NicL1	NF	no factor TF: 75-76
2008-12-31	apostolosko	NF	no factor TF: 74-75
2008-12-19	apostolosko	NF	no factor TF: 73-74
2008-12-16	apostolosko	NF	no factor TF: 72-73
2008-12-12	werdwerdus	NF	no factor TF: 71-72
2008-12-11	werdwerdus	NF	no factor TF: 70-71
2008-12-10	werdwerdus	NF	no factor TF: 69-70
2008-12-10	werdwerdus	NF	no factor TF: 68-69