6 706 519 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 2⁷²

TF target 2⁶⁷

P-1

B1 =	3000000
B2 =	10342810170

ECM

Digits	B1	Curves
25	50000	6 / 280

Estimated T-Level: 20.1 ⓘ

Status	Date	User	Residue	Shift
Verified	1999-06-15	Harri Filen	585EA299862D61C3	0
Verified	2001-06-30	Hendrik Jansson	585EA299862D61C3	5884

History

Date	User	Type	Result
2023-08-22	Naegi Makoto	NF-PM1	B1=3000000, B2=10342810170
2022-09-19	Wentao Huang	NF-PM1	B1=2500000, B2=1203639780
2021-02-17	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-02-16	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-02-16	-Anonymous-	NF	no factor from 2^69 to 2^70
2020-05-22	TJAOI	NF	no factor from 2^68 to 2^69
2018-02-26	-Anonymous-	NF	no factor from 2^67 to 2^68
2016-04-22	Gordon Spence	NF	no factor from 2^66 to 2^67
2015-11-10	snme2pm1	NF	no factor from 2^65 to 2^66
2014-07-08	lycorn	NF	no factor from 2^64 to 2^65
2014-06-29	Nesowa	NF	no factor from 2^63 to 2^64
2011-06-17	Carsten Kossendey	NF-PM1	B1=420000, B2=12705000, E=12