84 164 771 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 =	13232500

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-04-04	Milwizzle	861D8D257A31CF64	0	1	3
Verified	Certified Good Power=8	2021-11-05	ATH	861D8D257A31CF64	0	1	3

History

Date	User	Type	Result
2021-11-05	curtisc	CERT	Proof certified good
2021-11-05	ATH	C-PRP	861D8D257A31CF64 Proof Certified Good Proof Power: 8
2019-04-04	Milwizzle	C-PRP	861D8D257A31CF64
2017-10-30	Oliver Kruse	NF-PM1	B1=670000, B2=13232500, E=12
2017-04-18	Kevin Jaget	NF	no factor TF: 74-75
2017-04-18	Kevin Jaget	NF	no factor TF: 75-76
2017-03-07	gcardona	NF	no factor TF: 73-74
2017-01-06	Judge Hale	NF	no factor TF: 72-73
2017-01-06	Judge Hale	NF	no factor TF: 71-72
2015-08-09	monst	NF	no factor TF: 70-71
2014-08-24	Houd Al-Obaidli	NF	no factor TF: 69-70
2014-08-20	Houd Al-Obaidli	NF	no factor TF: 68-69
2014-06-04	monst	NF	no factor TF: 66-68
2012-08-17	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-23	Architects Cubed	NF	no factor TF: 64-65