332 204 623 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	2015-09-24	Andrew B	CF9B528ED1FE3B__	316695674	Windows,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
2016-12-11	Random GPUs	NF	no factor TF: 79-80
2016-12-11	Random GPUs	NF	no factor TF: 78-79
2016-12-11	Random GPUs	NF	no factor TF: 77-78
2015-09-24	Andrew B	C-LL	CF9B528ED1FE3B__
2009-08-23	Andrew B	NF	no factor TF: 76-77
2009-07-28	Andrew B	NF	no factor TF: 75-76
2009-07-16	Andrew B	NF-PM1	B1=5670000
2009-02-20	Andrew B	NF	no factor TF: 74-75
2009-02-03	Andrew B	NF	no factor TF: 73-74
2009-01-23	Andrew B	NF	no factor TF: 72-73
2009-01-19	Andrew B	NF	no factor TF: 71-72
2009-01-17	Andrew B	NF	no factor TF: 70-71
2009-01-16	Andrew B	NF	no factor TF: 69-70
2009-01-07	Team_Inspector	NF	no factor TF: 68-69