332 228 993 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 =	4305000
B2 =	4305000

Status	Date	User	Residue	Shift	Software
Unverified	2017-08-11	AnthonyRais	0B20867D1A6A1D__	219355352	Windows 64-bit,Prime95,v29.2,build 2

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-21	Mark Rose	NF	no factor TF: 80-81
2023-02-21	Mark Rose	NF	no factor TF: 79-80
2023-02-21	Mark Rose	NF	no factor TF: 78-79
2017-08-11	AnthonyRais	C-LL	0B20867D1A6A1D__
2016-10-01	AnthonyRais	NF-PM1	B1=4305000
2016-04-18	el grocco	NF	no factor TF: 77-78
2015-08-26	Grant McCracken	NF	no factor TF: 76-77
2011-09-25	Sebastian Hornbostel	NF	no factor TF: 75-76
2011-07-21	Sebastian Hornbostel	NF	no factor TF: 74-75
2011-01-15	Team_Inspector	NF	no factor TF: 73-74
2010-12-09	Team_Inspector	NF	no factor TF: 72-73
2010-10-10	Team_Inspector	NF	no factor TF: 71-72
2010-05-06	Grant McCracken	NF	no factor TF: 70-71
2009-03-14	Team_Inspector	NF	no factor TF: 69-70
2009-01-03	Team_Inspector	NF	no factor TF: 68-69