84 197 591 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)	2019-04-17	George Woltman	8B52E28C1DF9AA27	63134789	1	3
Verified	PRP without proof (not generated)	2021-11-15	ATH	8B52E28C1DF9AA27	0	1	3

History

Date	User	Type	Result
2021-11-15	ATH	C-PRP	8B52E28C1DF9AA27
2019-04-24	ATH	NF	no factor TF: 63-64
2019-04-24	ATH	NF	no factor TF: 1-63
2019-04-17	George Woltman	C-PRP	8B52E28C1DF9AA27
2017-10-30	bam	NF-PM1	B1=675000, B2=13162500, E=12
2017-04-19	TheJudger	NF	no factor TF: 74-75
2017-04-19	TheJudger	NF	no factor TF: 75-76
2017-03-12	RichD0	NF	no factor TF: 73-74
2016-12-17	Judge Hale	NF	no factor TF: 72-73
2014-03-11	nate.anders	NF	no factor TF: 71-72
2014-03-11	nate.anders	NF	no factor TF: 70-71
2014-03-11	nate.anders	NF	no factor TF: 69-70
2014-02-18	Wayne_Yeung	NF	no factor TF: 68-69
2014-02-15	Balazs Hegyi	NF	no factor TF: 67-68
2014-02-11	SMoffat	NF	no factor TF: 66-67
2012-08-13	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65