84 671 933 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 =	705000
B2 =	13747500

Status	Proof	Date	User	Residue	Shift	Type	Base
Verified	PRP without proof (not generated)	2019-04-24	William Wallace	9F918586AAB71168	20356816	1	3
Verified	Certified Good Power=8	2022-02-10	ATH	9F918586AAB71168	0	1	3

History

Date	User	Type	Result
2024-06-11	James Heinrich	NF	no factor TF: 68-69
2022-02-10	George Woltman	CERT	Proof certified good
2022-02-10	ATH	C-PRP	9F918586AAB71168 Proof Certified Good Proof Power: 8
2019-04-27	ATH	NF	no factor TF: 63-64
2019-04-27	ATH	NF	no factor TF: 1-63
2019-04-24	William Wallace	C-PRP	9F918586AAB71168
2017-12-02	apocalypse	NF-PM1	B1=705000, B2=13747500, E=6
2017-05-28	TheJudger	NF	no factor TF: 75-76
2017-05-19	Brian Beuning	NF	no factor TF: 74-75
2017-05-12	-anonymous-	NF	no factor TF: 73-74
2017-02-07	Matthias Wurtinger	NF	no factor TF: 71-72
2017-02-07	Matthias Wurtinger	NF	no factor TF: 72-73
2014-08-22	SMoffat	NF	no factor TF: 70-71
2014-03-15	ANONYMOUS	NF	no factor TF: 69-70
2014-01-14	Carsten Kossendey	NF	no factor TF: 68-69
2013-12-21	Carsten Kossendey	NF	no factor TF: 67-68
2013-12-21	Carsten Kossendey	NF	no factor TF: 66-67
2012-08-08	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-22	Architects Cubed	NF	no factor TF: 64-65