3 573 761 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
19894692275790794586157578481	29	94.0	2021-05-21 16:06:35

ECM

Digits	B1	Curves
25	50000	17 / 280

Estimated T-Level: 20.3 ⓘ

TF below 2^62 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Friberg	B1664161D0590B23	0
Verified (Factored)	1999-10-07	Brad Kimmel	B1664161D0590B23	2970093

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-05-21	/r/counting	860BBC401F637673	1	2579350	5	3

History

Date	User	Type	Result
2022-05-17	Joss	NF-PM1	B1=500000, B2=130364850
2022-02-25	Joss	NF-PM1	B1=200000
2021-05-21	Johan Viljoen	CERT	PRP Certification Proof certified good
2021-05-21	/r/counting	C-PRP	M3573761/19894692275790794586157578481 : 860BBC401F637673 PRP proof power = 7 PRP: Verified Proof certified good
2021-05-21	nordi	F-ECM	Factor: 19894692275790794586157578481 / (ECM curve 5, B1=50000, B2=6350000, Sigma=5209862349890397)
2021-03-18	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-03-18	-Anonymous-	NF	no factor from 2^69 to 2^70
2020-12-21	axn	NF	no factor from 2^68 to 2^69
2018-11-19	TJAOI	NF	no factor from 2^67 to 2^68
2017-05-13	Joss	NF-PM1	B1=350000, B2=3500000, E=6
2017-01-20	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-04-06	USAFSS	NF-PM1	B1=175000, B2=4681250, E=6
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
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2015-01-30	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-30	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-07-02	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-12-23	Squeeky_Squirrel	NF-PM1	B1=85000, B2=1572500, E=6
2011-06-19	markr	NF	no factor from 2^61 to 2^62
2009-07-09	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-15	S485122	NF	no factor from 2^60 to 2^61

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