9 140 977 Exponent Status

Great Internet Mersenne Prime Search
GIMPS
Finding World Record Primes Since 1996

PrimeNet Exponent Status

M_n

Status

Details

TF

No factors below 2⁷³

TF target 2⁶⁸

P-1

B1 =	2500000
B2 =	3548980050

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-02-01	Bartholomew Barker	E800B337379F6649	8305204
Verified	2003-03-07	Marc Getty / Phil Fizur	E800B337379F6649	1584832

History

Date	User	Type	Result
2023-10-31	Sid & Andy	NF-PM1	B1=2500000, B2=3548980050
2021-12-28	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-24	SRBase	NF	no factor from 2^71 to 2^72
2021-09-26	Tha	NF-PM1	B1=2000000, B2=146000000
2016-01-22	ramgeis	NF	no factor from 2^70 to 2^71
2014-03-30	ramgeis	NF	no factor from 2^69 to 2^70
2014-03-30	ramgeis	NF	no factor from 2^68 to 2^69
2014-03-30	ramgeis	NF	no factor from 2^67 to 2^68
2014-03-30	ramgeis	NF	no factor from 2^66 to 2^67
2012-10-02	dbaugh	NF	no factor from 2^65 to 2^66
2012-10-02	dbaugh	NF	no factor from 2^64 to 2^65
2012-08-16	Nesowa	NF-PM1	B1=110000, B2=2007500, E=6
2009-07-29	Carsten Kossendey	NF-PM1	B1=50000, B2=762500, E=6