332 212 871 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 =	4420000
B2 =	4420000

Status	Date	User	Residue	Shift	Software
Unverified	2019-03-18	roemer2201	CF5B517DB3B977__	38836250	Linux 64-bit,Prime95,v29.4,build 5

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-12	Mark Rose	NF	no factor TF: 80-81
2023-02-12	Mark Rose	NF	no factor TF: 79-80
2023-02-12	Mark Rose	NF	no factor TF: 78-79
2019-03-18	roemer2201	C-LL	CF5B517DB3B977__
2016-08-12	roemer2201	NF-PM1	B1=4420000
2015-06-17	Luigi Morelli	NF	no factor TF: 77-78
2015-06-17	Luigi Morelli	NF	no factor TF: 76-77
2011-06-15	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-06-13	Sunfish	NF	no factor TF: 74-75
2010-11-10	Team_Inspector	NF	no factor TF: 73-74
2010-02-25	Team_Inspector	NF	no factor TF: 72-73
2010-02-18	Team_Inspector	NF	no factor TF: 71-72
2010-02-17	Team_Inspector	NF	no factor TF: 70-71
2009-07-13	Team_Inspector	NF	no factor TF: 69-70
2009-05-03	Team_Inspector	NF	no factor TF: 68-69