84 651 461 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 =	1061000
B2 =	517289850

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2018-08-20	Luigi Morelli	944F3498CD3E4E3F	22780356	1	3
Verified	Certified Good Power=8	2022-02-10	ATH	944F3498CD3E4E3F	0	1	3

History

Date	User	Type	Result
2025-06-20	Jason Lynch	NF-PM1	B1=1061000, B2=517289850
2022-02-10	curtisc	CERT	Proof certified good
2022-02-10	ATH	C-PRP	944F3498CD3E4E3F Proof Certified Good Proof Power: 8
2018-08-20	Luigi Morelli	C-PRP	944F3498CD3E4E3F
2017-12-05	Yxinity	NF-PM1	B1=775000
2017-05-29	RichD0	NF	no factor TF: 75-76
2017-05-24	1997rj7	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: 71-72
2017-02-01	Judge Hale	NF	no factor TF: 72-73
2014-08-17	SMoffat	NF	no factor TF: 70-71
2014-04-22	DasDaniel	NF	no factor TF: 69-70
2014-04-15	DasDaniel	NF	no factor TF: 68-69
2014-04-14	Preben S	NF	no factor TF: 67-68
2014-04-12	SMoffat	NF	no factor TF: 66-67
2012-09-13	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-24	Architects Cubed	NF	no factor TF: 64-65