79 281 949 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 2⁷⁵

P-1

B1 =	665000
B2 =	13300000

Status	Date	User	Residue	Shift	Software
Verified	2018-07-04	-anonymous-	6DE312F4DA577914	51102043	Windows 64-bit,Prime95,v29.4,build 5
Verified	2023-07-11	MadPoo 🙂	6DE312F4DA577914	51765041	Windows 64-bit,Prime95,v30.12,build 1

History

Date	User	Type	Result
2023-07-11	MadPoo 🙂	C-LL	6DE312F4DA577914
2018-07-04	-anonymous-	C-LL	6DE312F4DA577914
2016-10-01	Xolotl	NF-PM1	B1=665000, B2=13300000, E=12
2016-08-01	AirSquirrels	NF	no factor TF: 74-75
2016-08-01	AirSquirrels	NF	no factor TF: 73-74
2016-07-26	RichD0	NF	no factor TF: 72-73
2014-01-03	PascalBieri	NF	no factor TF: 71-72
2013-01-23	Mr. Miltko's Class	NF	no factor TF: 70-71
2010-11-25	sannerud.com	NF	no factor TF: 69-70
2010-11-25	sannerud.com	NF	no factor TF: 68-69
2010-11-25	sannerud.com	NF	no factor TF: 67-68
2010-11-24	Craig Meyers	NF	no factor TF: 66-67
2010-11-20	Craig Meyers	NF	no factor TF: 65-66
2008-06-02	lycorn	NF	no factor TF: 1-65
2004-11-03	-anonymous-	NF	no factor TF: 1-63
2001-09-16	Joss	NF	no factor TF: 1-59
1999-12-30	-anonymous-	NF	no factor TF: 1-53