3 750 631 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1805675568540014222599	22	70.6	2021-10-23 11:51:45

ECM

Digits	B1	Curves
25	50000	24 / 280

Estimated T-Level: 20.4 ⓘ

TF below 2^63 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)	1998-08-16	Tony Gurney	08E80066D576BC6E	0
Verified (Factored)	1999-08-16	Andrew Hintz	08E80066D576BC6E	1443941

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-10-24	kutens	8B7FAF25D9E79F12	1	812469	5	3

History

Date	User	Type	Result
2022-05-25	Joss	NF-PM1	B1=100000, B2=130364850
2022-03-22	Joss	NF-PM1	B1=100000
2022-03-03	Joss	NF-PM1	B1=90000
2021-10-24	LovinTenderTu	CERT	PRP Certification Proof certified good
2021-10-24	kutens	C-PRP	M3750631/1805675568540014222599 : 8B7FAF25D9E79F12 PRP proof power = 7 PRP: Verified Proof certified good
2021-10-23	kutens	F-ECM	Factor: 1805675568540014222599 / (ECM curve 5, B1=50000, B2=6700000, Sigma=2826731084641734)
2021-03-22	axn	NF	no factor from 2^69 to 2^70
2020-12-07	axn	NF	no factor from 2^68 to 2^69
2019-02-11	TJAOI	NF	no factor from 2^67 to 2^68
2016-11-07	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-26	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-12-03	mikr	NF-PM1	B1=1600000, B2=66000000, E=12
2015-01-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-03-16	Squeeky_Squirrel	NF-PM1	B1=110000, B2=2035000, E=6
2012-05-10	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-05-01	markr	NF	no factor to 2^62
2009-07-07	Carsten Kossendey	NF-PM1	B1=20000, B2=265000
2009-03-03	S485122	NF	no factor from 2^60 to 2^61

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