84 191 951 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 =	670000
B2 =	12897500

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-04-06	ATH	07B26D20C7052CAD	53090212	1	3
Verified	Certified Good Power=8	2021-11-11	ATH	07B26D20C7052CAD	0	1	3

History

Date	User	Type	Result
2021-11-11	DasDaniel	CERT	Proof certified good
2021-11-11	ATH	C-PRP	07B26D20C7052CAD Proof Certified Good Proof Power: 8
2019-04-06	ATH	C-PRP	07B26D20C7052CAD Proof Certified Good Proof Power: 8
2017-11-03	bam	NF-PM1	B1=670000, B2=12897500
2017-04-19	TheJudger	NF	no factor TF: 74-75
2017-04-19	TheJudger	NF	no factor TF: 75-76
2017-03-12	gcardona	NF	no factor TF: 73-74
2017-01-12	Judge Hale	NF	no factor TF: 72-73
2017-01-12	Judge Hale	NF	no factor TF: 71-72
2014-08-30	SMoffat	NF	no factor TF: 70-71
2014-05-09	-anonymous-	NF	no factor TF: 69-70
2014-03-05	-anonymous-	NF	no factor TF: 68-69
2014-02-19	SMoffat	NF	no factor TF: 67-68
2013-12-15	-anonymous-	NF	no factor TF: 66-67
2012-08-05	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-23	Architects Cubed	NF	no factor TF: 64-65