332 211 449 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 =	5305000
B2 =	5305000

Status	Date	User	Residue	Shift	Software
Unverified	2016-12-19	Shnobel	CD9B9E23E20C28__	69260398	Windows 64-bit,Prime95,v28.5,build 2

History

Date	User	Type	Result
2023-10-18	James Heinrich	NF	no factor TF: 67-68
2023-02-10	Mark Rose	NF	no factor TF: 80-81
2022-09-17	Naegi Makoto	NF	no factor TF: 79-80
2022-09-17	Naegi Makoto	NF	no factor TF: 78-79
2016-12-19	Shnobel	C-LL	CD9B9E23E20C28__
2015-06-09	srow7	NF	no factor TF: 77-78
2010-09-04	cactusmonkey	NF	no factor TF: 76-77
2010-07-29	cactusmonkey	NF-PM1	B1=5305000
2010-04-27	cactusmonkey	NF	no factor TF: 75-76
2009-01-31	kaeptnb	NF	no factor TF: 74-75
2009-01-26	kaeptnb	NF	no factor TF: 73-74
2009-01-24	kaeptnb	NF	no factor TF: 72-73
2009-01-23	kaeptnb	NF	no factor TF: 71-72
2009-01-22	kaeptnb	NF	no factor TF: 70-71
2008-11-22	Kirill Demin	NF	no factor TF: 69-70
2008-11-21	Kirill Demin	NF	no factor TF: 68-69