84 323 513 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)	2019-04-04	Mihai Preda	28370CD88CFFAFDB	0	4	3
Verified	PRP without proof (not generated)	2021-08-07	Massimo Cappelli (ik5pwa)	28370CD88CFFAFDB	49103940	4	3

History

Date	User	Type	Result
2021-08-07	Massimo Cappelli (ik5pwa)	C-PRP	28370CD88CFFAFDB
2019-04-04	Mihai Preda	C-PRP	28370CD88CFFAFDB
2017-11-06	James Heinrich	NF-PM1	B1=670000, B2=12897500, E=6
2017-04-24	TheJudger	NF	no factor TF: 75-76
2017-04-21	Chris Smith	NF	no factor TF: 74-75
2017-04-18	gcardona	NF	no factor TF: 73-74
2017-01-16	Judge Hale	NF	no factor TF: 71-72
2017-01-16	Judge Hale	NF	no factor TF: 72-73
2014-08-21	PascalBieri	NF	no factor TF: 70-71
2014-04-11	S00030	NF	no factor TF: 69-70
2014-04-09	JMGarcia	NF	no factor TF: 68-69
2013-03-01	sasabl	NF	no factor TF: 67-68
2013-02-26	wangyun183	NF	no factor TF: 66-67
2012-08-28	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-07	Architects Cubed	NF	no factor TF: 64-65