84 647 579 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 =	680000
B2 =	13260000

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-12-27	George Woltman	7900FBF8132E072D	19068259	1	3
Verified	Certified Good Power=8	2023-03-25	LordJulius	7900FBF8132E072D	57082449	1	3

History

Date	User	Type	Result
2023-03-25	Remi Lucet	CERT	Proof certified good
2023-03-25	LordJulius	C-PRP	7900FBF8132E072D Proof Certified Good Proof Power: 8
2018-12-27	George Woltman	C-PRP	7900FBF8132E072D
2017-11-25	S485122	NF-PM1	B1=680000, B2=13260000, E=12
2017-05-28	TheJudger	NF	no factor TF: 75-76
2017-05-22	Brian Beuning	NF	no factor TF: 74-75
2017-05-19	-anonymous-	NF	no factor TF: 73-74
2017-02-01	Judge Hale	NF	no factor TF: 72-73
2017-02-01	Judge Hale	NF	no factor TF: 71-72
2014-11-19	wombatman	NF	no factor TF: 70-71
2014-02-20	SMoffat	NF	no factor TF: 69-70
2014-02-16	SMoffat	NF	no factor TF: 68-69
2014-02-12	SMoffat	NF	no factor TF: 67-68
2014-02-11	SMoffat	NF	no factor TF: 66-67
2012-08-18	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65