3 017 557 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Composite: proven not-prime with Lucas-Lehmer test

No factors below 2⁷¹

TF target 2⁶⁴

TF below 2^80 is very unlikely to find new factors due to ECM effort.

P-1

B1 =	10000000
B2 =	19063489830

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	61 / 640

Estimated T-Level: 25.5 ⓘ

Status	Date	User	Residue	Shift
Verified		Jani Launonen	B99F59F6ED0B7F3E	0
Verified	1999-05-30	Brent Roberts	B99F59F6ED0B7F3E	1982831

History

Date	User	Type	Result
2025-01-10	Joss	NF-PM1	B1=10000000, B2=19063489830
2024-03-18	Joss	NF-PM1	B1=10000000, B2=7647705450
2022-10-28	Joss	NF-PM1	B1=1000000, B2=118249950
2022-06-12	mikr	NF	no factor from 2^70 to 2^71
2022-02-01	Gordon Spence	NF	no factor from 2^69 to 2^70
2021-04-08	TJAOI	NF	no factor from 2^68 to 2^69
2019-07-29	oodaira	NF-PM1	B1=32709892, B2=1864463844, E=12
2018-07-16	ramgeis	NF	no factor from 2^67 to 2^68
2017-02-09	Smok_bmv	NF	no factor from 2^66 to 2^67
2016-08-25	trebor	NF-PM1	B1=3000000
2016-08-23	trebor	NF-PM1	B1=2750000
2016-08-21	trebor	NF-PM1	B1=2500000
2016-08-19	trebor	NF-PM1	B1=2250000
2016-08-14	trebor	NF-PM1	B1=2000000
2015-08-01	Squeeky_Squirrel	NF-PM1	B1=150000, B2=3675000, E=6
2015-06-01	Tha	NF	no factor from 2^65 to 2^66
2015-02-07	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-07	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2010-10-16	markr	NF-PM1	B1=115000, B2=2357500, E=6
2010-09-18	Sid & Andy	NF	no factor from 2^61 to 2^62
2009-01-30	Jayson King	NF	no factor from 2^60 to 2^61

Username
Password