10 026 397 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 2⁷⁴

TF target 2⁶⁸

P-1

B1 =	2000000
B2 =	2056733910

ECM

Digits	B1	Curves
25	50000	39 / 280

Estimated T-Level: 20.7 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-08-10	Robert Clark	79A56CA6541797C5	616799
Verified	2004-02-07	Willi Meyer	79A56CA6541797C5	5129215

History

Date	User	Type	Result
2024-08-18	timc995	NF-PM1	B1=2000000, B2=2056733910
2023-04-14	JacobZ	NF-PP1	Start=2/7, B1=2000000, B2=150000000
2022-02-01	Numberwang	NF-PM1	B1=410000, B2=447075720
2021-05-19	-Anonymous-	NF	no factor from 2^73 to 2^74
2021-04-30	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-04-27	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-01-09	ViliamF	NF	no factor from 2^70 to 2^71
2020-07-29	ViliamF	NF-PM1	B1=1000000, B2=30000000
2020-06-17	ViliamF	NF	no factor from 2^69 to 2^70
2017-09-22	ramgeis	NF	no factor from 2^68 to 2^69
2016-04-24	mikr	NF	no factor from 2^67 to 2^68
2015-11-10	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-04-19	Tha	NF	no factor from 2^65 to 2^66
2012-01-15	bcp19	NF-PM1	B1=110000, B2=1952500, E=6
2011-10-11	David Campeau	NF	no factor from 2^64 to 2^65