68 343 049 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	625000
B2 =	12812500

Status	Date	User	Residue	Shift	Software
Verified	2016-01-31	Kyle Z Schmidt	0525AC7F10BA9F6E	3177758	Windows 64-bit,Prime95,v28.5,build 2
Verified	2024-03-20	Tabesh	0525AC7F10BA9F6E	917716	Windows 64-bit,Prime95,v30.3,build 6
Verified	2024-09-26	jpldudes	0525AC7F10BA9F6E	30734474	Linux 64-bit,Prime95,v26.6,build 3

History

Date	User	Type	Result
2024-09-26	jpldudes	C-LL	0525AC7F10BA9F6E
2024-03-20	Tabesh	C-LL	0525AC7F10BA9F6E
2016-01-31	Kyle Z Schmidt	C-LL	0525AC7F10BA9F6E
2016-01-03	Chuck	NF	no factor TF: 74-75
2014-07-27	TheJudger	NF-PM1	B1=625000, B2=12812500, E=12
2014-07-21	BigBrother	NF	no factor TF: 73-74
2014-07-21	BigBrother	NF	no factor TF: 72-73
2014-07-21	BigBrother	NF	no factor TF: 71-72
2012-09-23	Clown_Royal	NF	no factor TF: 70-71
2012-03-05	Brian Chan	NF	no factor TF: 69-70
2010-08-03	Net_Force	NF	no factor TF: 68-69
2010-07-23	Net_Force	NF	no factor TF: 67-68
2010-07-15	Net_Force	NF	no factor TF: 66-67
2010-06-18	gbvalor	NF	no factor TF: 65-66
2010-06-12	hackepeter	NF	no factor TF: 64-65
2009-01-06	1997rj7	NF	no factor TF: 1-64