84 130 687 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 =	665000
B2 =	12302500

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-03-05	meracayn	8C83141E1F8008D2	47537820	1	3
Verified	Certified Good Power=8	2021-11-04	ATH	8C83141E1F8008D2	0	1	3

History

Date	User	Type	Result
2021-11-04	Tak	CERT	Proof certified good
2021-11-04	ATH	C-PRP	8C83141E1F8008D2 Proof Certified Good Proof Power: 8
2018-03-05	meracayn	C-PRP	8C83141E1F8008D2
2017-10-29	arnaud	NF-PM1	B1=665000, B2=12302500
2017-04-14	-anonymous-	NF	no factor TF: 75-76
2017-03-24	Mark Rose	NF	no factor TF: 74-75
2017-03-02	RichD0	NF	no factor TF: 73-74
2017-01-03	Judge Hale	NF	no factor TF: 71-72
2017-01-03	Judge Hale	NF	no factor TF: 72-73
2013-11-06	Ryan Propper	NF	no factor TF: 70-71
2013-08-16	JMGarcia	NF	no factor TF: 69-70
2013-08-14	GrunwalderGIMP	NF	no factor TF: 68-69
2013-08-13	CSLatDD	NF	no factor TF: 67-68
2013-05-09	C. Wang	NF	no factor TF: 66-67
2012-09-05	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-23	Architects Cubed	NF	no factor TF: 64-65