332 210 191 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	2016-01-16	Arthur Rosenthal	08EADDA8A2E2CF__	3989330	Windows 64-bit,Prime95,v27.7,build 2

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-11	Mark Rose	NF	no factor TF: 80-81
2016-12-28	Random GPUs	NF	no factor TF: 79-80
2016-12-23	Random GPUs	NF	no factor TF: 78-79
2016-12-23	Random GPUs	NF	no factor TF: 77-78
2016-01-16	Arthur Rosenthal	C-LL	08EADDA8A2E2CF__
2009-07-21	Arthur Rosenthal	NF	no factor TF: 76-77
2009-05-11	Arthur Rosenthal	NF	no factor TF: 75-76
2009-04-20	Arthur Rosenthal	NF-PM1	B1=5670000
2008-12-20	Arthur Rosenthal	NF	no factor TF: 74-75
2008-12-01	Arthur Rosenthal	NF	no factor TF: 73-74
2008-11-26	Arthur Rosenthal	NF	no factor TF: 72-73
2008-11-23	Arthur Rosenthal	NF	no factor TF: 71-72
2008-11-22	Arthur Rosenthal	NF	no factor TF: 70-71
2008-11-21	Arthur Rosenthal	NF	no factor TF: 69-70
2008-11-21	Arthur Rosenthal	NF	no factor TF: 68-69