68 242 093 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	2016-01-10	Kyle Z Schmidt	C94B46A7219B61F9	59040779	Windows 64-bit,Prime95,v28.5,build 2
Verified	2024-02-03	TheJudger	C94B46A7219B61F9	24987932	Linux 64-bit,Prime95,v30.8,build 18

History

Date	User	Type	Result
2024-06-01	LaurV	NF	no factor TF: 70-71
2024-02-03	TheJudger	C-LL	C94B46A7219B61F9
2016-01-10	Kyle Z Schmidt	C-LL	C94B46A7219B61F9
2015-12-19	dh1	NF	no factor TF: 74-75
2014-11-16	Nesowa	NF-PM1	B1=625000, B2=12812500, E=12
2014-11-11	Nesowa	NF	no factor TF: 73-74
2014-07-09	owftheevil	NF	no factor TF: 71-73
2013-10-11	Carsten Kossendey	NF	no factor TF: 70-71
2013-05-04	ITS	NF	no factor TF: 69-70
2010-04-16	WorknPlay	NF	no factor TF: 68-69
2010-02-13	charger	NF	no factor TF: 67-68
2010-01-15	charger	NF	no factor TF: 66-67
2010-01-10	-anonymous-	NF	no factor TF: 65-66
2009-04-12	oodaira	NF	no factor TF: 64-65
2009-02-09	1997rj7	NF	no factor TF: 1-64