3 588 941 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
6528081723068486420737	22	72.5	2021-08-26 05:07:13

ECM

Digits	B1	Curves
25	50000	30 / 280

Estimated T-Level: 20.5 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Roberto Cornacchia	C54D48152968AD57	0
Verified (Factored)	1999-12-08	Guillermo Ballester Valor	C54D48152968AD57	2647195

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-09-01	LaurV	857F71902CAF4D80	1	1288706	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
2022-03-04	Joss	NF-PM1	B1=90000
2021-09-01	garo	CERT	PRP Certification Proof certified good
2021-09-01	LaurV	C-PRP	M3588941/6528081723068486420737 : 857F71902CAF4D80 PRP proof power = 7 PRP: Verified Proof certified good
2021-08-26	Sergey Nosov	F-ECM	Factor: 6528081723068486420737 / (ECM curve 4, B1=50000, B2=5000000)
2021-03-20	-Anonymous-	NF	no factor from 2^71 to 2^72
2021-03-17	-Anonymous-	NF	no factor from 2^70 to 2^71
2021-03-17	-Anonymous-	NF	no factor from 2^69 to 2^70
2020-12-21	axn	NF	no factor from 2^68 to 2^69
2018-09-03	TJAOI	NF	no factor from 2^67 to 2^68
2017-01-20	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-05-28	Squeeky_Squirrel	NF-PM1	B1=225000, B2=6581250, E=12
2016-02-25	ramgeis	NF	no factor from 2^65 to 2^66
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
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
2012-07-02	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2011-12-30	Squeeky_Squirrel	NF-PM1	B1=85000, B2=1593750, E=6
2011-06-16	Grant McCracken	NF	no factor from 2^61 to 2^62
2009-07-10	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-14	S485122	NF	no factor from 2^60 to 2^61

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