11 501 717 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 =	5438209140

ECM

Digits	B1	Curves
25	50000	2 / 280

Estimated T-Level: 20.0 ⓘ

Status	Date	User	Residue	Shift
Verified	2001-04-15	Willamette Mathematics	98B33614FB6F01DD	8794227
Verified	2004-04-09	Brian Peltzer	98B33614FB6F01DD	9269909

History

Date	User	Type	Result
2024-11-17	TheJudger	NF	no factor from 2^72 to 2^73
2024-03-29	linament	NF-PM1	B1=2000000, B2=5438209140
2023-02-28	kracker	NF	no factor from 2^71 to 2^72
2021-10-03	Dylan Delgado	NF-PM1	B1=1800000, B2=127800000
2021-10-02	mikr	NF	no factor from 2^70 to 2^71
2021-09-24	lycorn	NF	no factor from 2^69 to 2^70
2018-01-07	ramgeis	NF	no factor from 2^68 to 2^69
2018-01-07	ramgeis	NF	no factor from 2^67 to 2^68
2016-01-15	VictordeHollander	NF	no factor from 2^66 to 2^67
2014-12-20	Nesowa	NF	no factor from 2^65 to 2^66
2014-10-14	Tha	NF-PM1	B1=300000, B2=6000000, E=12
2013-11-07	lycorn	NF	no factor from 2^64 to 2^65