10 608 817 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 =	1000000
B2 =	683234370

ECM

Digits	B1	Curves
25	50000	3 / 280

Estimated T-Level: 20.1 ⓘ

Status	Date	User	Residue	Shift
Verified	2000-08-24	Alan Vidmar	CDB1EFE0DB8BBD3E	8979568
Verified	2003-12-02	Marc Getty / Phil Fizur	CDB1EFE0DB8BBD3E	1377781

History

Date	User	Type	Result
2022-02-17	megavink	NF-PM1	B1=1000000, B2=683234370
2021-12-31	-Anonymous-	NF	no factor from 2^72 to 2^73
2021-10-26	SRBase	NF	no factor from 2^71 to 2^72
2021-08-16	SRBase	NF	no factor from 2^70 to 2^71
2020-08-23	ViliamF	NF	no factor from 2^69 to 2^70
2017-12-17	ramgeis	NF	no factor from 2^68 to 2^69
2017-12-17	ramgeis	NF	no factor from 2^67 to 2^68
2015-11-18	VictordeHollander	NF	no factor from 2^66 to 2^67
2015-05-09	Tha	NF	no factor from 2^65 to 2^66
2013-12-14	lycorn	NF	no factor from 2^64 to 2^65
2013-01-31	Nesowa	NF-PM1	B1=155000, B2=3000000, E=6