77 231 809 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 PRP test

No factors below 2⁷⁵

TF target 2⁷⁴

P-1

B1 =	720000
B2 =	15120000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-02-19	Kriesel	B8D838C75366AD2D	0	1	3
Verified	PRP without proof (not generated)	2018-04-27	kkmrkkblmbrbk	B8D838C75366AD2D	22200693	1	3
Verified	PRP without proof (not generated)	2018-09-10	Kriesel	B8D838C75366AD2D	66466481	1	3

History

Date	User	Type	Result
2018-09-10	Kriesel	C-PRP	B8D838C75366AD2D
2018-04-27	kkmrkkblmbrbk	C-PRP	B8D838C75366AD2D
2018-02-19	Kriesel	C-PRP	B8D838C75366AD2D
2016-07-08	-anonymous-	NF	no factor TF: 74-75
2015-06-21	TheJudger	NF-PM1	B1=720000, B2=15120000, E=12
2015-06-17	The Mawn	NF	no factor TF: 73-74
2015-06-17	The Mawn	NF	no factor TF: 72-73
2014-01-07	SMoffat	NF	no factor TF: 71-72
2013-05-23	Manpowre	NF	no factor TF: 70-71
2010-10-10	Ethan O'Connor	NF	no factor TF: 69-70
2010-10-07	megavink	NF	no factor TF: 68-69
2010-10-04	Choi4KANG	NF	no factor TF: 67-68
2010-09-26	-anonymous-	NF	no factor TF: 66-67
2010-09-25	william	NF	no factor TF: 65-66
2008-10-27	JohnHa0	NF	no factor TF: 1-65
2003-12-02	-anonymous-	NF	no factor TF: 1-61
2000-08-17	-anonymous-	NF	no factor TF: 1-53