11 499 097 Exponent Status

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

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

TF

No factors below 2⁷³

TF target 2⁶⁸

P-1

B1 =	1069000
B2 =	1111433400

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-03-11	Shyan Lam	19B87F8CAD2C15C9	3446400
Verified	2004-09-16	Marc Getty / Phil Fizur	19B87F8CAD2C15C9	7076457

History

Date	User	Type	Result
2024-11-17	TheJudger	NF	no factor from 2^72 to 2^73
2024-05-15	chevron	NF-PM1	B1=1069000, B2=1111433400
2023-03-04	kracker	NF	no factor from 2^71 to 2^72
2022-07-21	James Heinrich	NF-PM1	B1=647000, B2=339785460
2021-08-19	SRBase	NF	no factor from 2^70 to 2^71
2021-08-07	SRBase	NF	no factor from 2^69 to 2^70
2018-01-03	ramgeis	NF	no factor from 2^68 to 2^69
2018-01-03	ramgeis	NF	no factor from 2^67 to 2^68
2016-01-15	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-04-28	Sid & Andy	NF-PM1	B1=125000, B2=2187500, E=6
2015-03-18	Nesowa	NF	no factor from 2^65 to 2^66
2013-11-09	lycorn	NF	no factor from 2^64 to 2^65