11 791 667 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 =	2000000
B2 =	496384980

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-04-01	Trevor Fast	F5A89A93600179A5	5958626
Verified	2004-05-15	Ray Strubinger	F5A89A93600179A5	7083278

History

Date	User	Type	Result
2024-11-17	TheJudger	NF	no factor from 2^72 to 2^73
2022-01-09	Architects Cubed	NF-PM1	B1=2000000, B2=496384980
2021-10-30	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-08-15	SRBase	NF	no factor from 2^70 to 2^71
2021-08-07	SRBase	NF	no factor from 2^69 to 2^70
2018-01-12	ramgeis	NF	no factor from 2^68 to 2^69
2018-01-12	ramgeis	NF	no factor from 2^67 to 2^68
2016-04-24	Numberwang	NF-PM1	B1=120000, B2=2490000, e=6
2016-02-08	VictordeHollander	NF	no factor from 2^66 to 2^67
2013-11-26	Nesowa	NF	no factor from 2^65 to 2^66
2013-10-24	lycorn	NF	no factor from 2^64 to 2^65