84 642 917 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 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	675000
B2 =	13331250

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-01-06	irowiki	4DE3E9C394604699	73592236	1	3
Verified	Certified Good Power=9	2021-08-12	tottenhoff	4DE3E9C394604699	36298705	1	3

History

Date	User	Type	Result
2021-08-12	ky0uraku	CERT	Proof certified good
2021-08-12	tottenhoff	C-PRP	4DE3E9C394604699 Proof Certified Good Proof Power: 9
2019-01-06	irowiki	C-PRP	4DE3E9C394604699
2017-11-26	Oliver Kruse	NF-PM1	B1=675000, B2=13331250, E=12
2017-05-22	TheJudger	NF	no factor TF: 75-76
2017-05-15	Brian Beuning	NF	no factor TF: 74-75
2017-05-12	-anonymous-	NF	no factor TF: 73-74
2017-02-01	Judge Hale	NF	no factor TF: 72-73
2017-02-01	Judge Hale	NF	no factor TF: 71-72
2014-11-19	wombatman	NF	no factor TF: 70-71
2013-03-18	ITS	NF	no factor TF: 69-70
2013-03-13	]mh[ Virtek	NF	no factor TF: 68-69
2013-03-10	]mh[ Virtek	NF	no factor TF: 67-68
2013-03-07	Risto A. Paju	NF	no factor TF: 66-67
2012-08-21	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-08	Architects Cubed	NF	no factor TF: 64-65