84 660 361 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 =	705000
B2 =	13395000

Status	Proof	Date	User	Residue	Shift	Type	Base
Bad	PRP without proof (not generated)	2019-01-13	irowiki	E308A9F84852A283	54206880	1	3
Verified	Certified Good Power=8	2022-02-07	ATH	DF53268A90EBB62F	0	1	3

History

Date	User	Type	Result
2022-02-07	phiberoptik	CERT	Proof certified good
2022-02-07	ATH	C-PRP	DF53268A90EBB62F Proof Certified Good Proof Power: 8
2019-01-13	irowiki	C-PRP	E308A9F84852A283
2017-11-29	mansky	NF-PM1	B1=705000, B2=13395000
2017-05-28	TheJudger	NF	no factor TF: 75-76
2017-05-18	Brian Beuning	NF	no factor TF: 74-75
2017-05-05	-anonymous-	NF	no factor TF: 73-74
2017-02-02	Judge Hale	NF	no factor TF: 72-73
2017-02-02	Judge Hale	NF	no factor TF: 71-72
2014-08-19	SMoffat	NF	no factor TF: 70-71
2013-03-11	ITS	NF	no factor TF: 69-70
2013-03-05	ITS	NF	no factor TF: 68-69
2013-02-28	ITS	NF	no factor TF: 67-68
2013-02-24	ITS	NF	no factor TF: 66-67
2012-08-19	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65