84 794 081 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 Lucas-Lehmer test

No factors below 2⁷⁶

TF target 2⁷⁵

P-1

B1 =	680000
B2 =	13430000

Status	Date	User	Residue	Shift	Software
Verified	2019-04-30	patgie	A09D805757DD4D3F	39895786	Windows 64-bit,Prime95,v29.4,build 8
Verified	2026-02-04	SLScool	A09D805757DD4D3F	59433558	Windows 64-bit,Prime95,v30.19,build 20

History

Date	User	Type	Result
2026-02-04	SLScool	C-LL	A09D805757DD4D3F
2019-04-30	patgie	C-LL	A09D805757DD4D3F
2019-04-27	ATH	NF	no factor TF: 1-63
2019-04-27	ATH	NF	no factor TF: 63-64
2017-12-17	TheJudger	NF-PM1	B1=680000, B2=13430000, E=12
2017-06-04	TheJudger	NF	no factor TF: 74-75
2017-06-04	TheJudger	NF	no factor TF: 75-76
2017-05-19	-anonymous-	NF	no factor TF: 73-74
2016-12-21	Judge Hale	NF	no factor TF: 72-73
2014-09-24	SRS Technology	NF	no factor TF: 71-72
2014-09-24	SRS Technology	NF	no factor TF: 70-71
2014-01-15	Preben S	NF	no factor TF: 69-70
2013-12-24	RMAC9.5	NF	no factor TF: 68-69
2013-02-25	saffa	NF	no factor TF: 67-68
2013-02-21	Freaks32	NF	no factor TF: 66-67
2012-08-16	Carsten Kossendey	NF	no factor TF: 65-66
2010-12-25	Architects Cubed	NF	no factor TF: 64-65