84 720 583 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 =	13162500

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-03-31	nranks	9D72216ECDA33B73	43235650	1	3
Verified	PRP without proof (not generated)	2021-08-10	ATH	9D72216ECDA33B73	0	1	3

History

Date	User	Type	Result
2021-08-10	ATH	C-PRP	9D72216ECDA33B73
2018-03-31	nranks	C-PRP	9D72216ECDA33B73
2018-01-14	TheJudger	NF-PM1	B1=675000, B2=13162500, E=6
2017-06-15	electron1897	NF	no factor TF: 74-75
2017-06-15	electron1897	NF	no factor TF: 75-76
2017-05-12	-anonymous-	NF	no factor TF: 73-74
2017-02-07	Judge Hale	NF	no factor TF: 72-73
2017-02-07	Judge Hale	NF	no factor TF: 71-72
2015-08-16	monst	NF	no factor TF: 70-71
2013-12-16	ITS	NF	no factor TF: 69-70
2013-12-12	GrunwalderGIMP	NF	no factor TF: 68-69
2013-12-11	GrunwalderGIMP	NF	no factor TF: 67-68
2013-02-20	Freaks32	NF	no factor TF: 66-67
2013-02-20	-anonymous-	NF	no factor TF: 66-67
2012-08-14	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65