333 221 089 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 =	3745000
B2 =	3745000

Status	Date	User	Residue	Shift	Software
Unverified	2020-09-11	Bob Schulien	3D5F0D62645DA7__	66788273	Windows 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2024-06-16	James Heinrich	NF	no factor TF: 69-72
2023-02-06	Mark Rose	NF	no factor TF: 80-81
2020-09-11	Bob Schulien	C-LL	3D5F0D62645DA7__
2019-08-07	Bob Schulien	NF-PM1	B1=3745000
2019-07-30	Bob Schulien	NF	no factor TF: 79-80
2018-05-06	Bob Schulien	NF	no factor TF: 78-79
2017-04-13	Bob Schulien	NF	no factor TF: 77-78
2016-10-27	Bob Schulien	NF	no factor TF: 76-77
2016-07-27	Bob Schulien	NF	no factor TF: 75-76
2016-06-15	Bob Schulien	NF	no factor TF: 74-75
2016-05-22	Bob Schulien	NF	no factor TF: 73-74
2014-12-09	Carsten Kossendey	NF	no factor TF: 72-73
2014-10-18	Carsten Kossendey	NF	no factor TF: 71-72
2014-10-18	Carsten Kossendey	NF	no factor TF: 70-71
2014-10-18	Carsten Kossendey	NF	no factor TF: 69-70
2012-04-10	LaurV	NF	no factor TF: 66-69
2010-11-03	Architects Cubed	NF	no factor TF: 65-66