3 642 241 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
971749441901226742593443449742074433	36	119.5	2020-08-23 07:52:04

ECM

Digits	B1	Curves
25	50000	12 / 280

Estimated T-Level: 20.2 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1998-10-18	Philipp Hänggi	B4B7213A4B93167F	0
Verified (Factored)	1999-11-24	Dúcz András	B4B7213A4B93167F	509786

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-08-23	M Miller	6C29C79AF1B16B81	1	2956872	5	3

P-1 factors

Date	Factor	B1	B2
2020-08-23	971749441901226742593443449742074433	30000000	600000000

History

Date	User	Type	Result
2022-07-17	Joss	NF-PM1	B1=3642241, B2=3682510650
2022-03-19	Joss	NF-PM1	B1=1000000, B2=147585900
2020-08-23	Ben Delo	CERT	PRP Certification Proof certified good
2020-08-23	M Miller	C-PRP	M3642241/971749441901226742593443449742074433 : 6C29C79AF1B16B81 PRP proof power = 7 PRP: Verified Proof certified good
2020-08-23	axn	F-PM1	Factor: 971749441901226742593443449742074433 / (P-1, B1=30000000, B2=600000000, E=12)
2018-07-23	TJAOI	NF	no factor from 2^67 to 2^68
2017-03-02	Joss	NF-PM1	B1=241228, B2=2412280, E=6
2017-02-04	Joss	NF-PM1	B1=201024
2017-01-29	Joss	NF-PM1	B1=167520
2016-12-27	Joss	NF-PM1	B1=129600
2016-12-26	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-06-09	Joss	NF-PM1	B1=108000, B2=3240000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2015-10-20	ramgeis	NF	no factor from 2^65 to 2^66
2015-01-22	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-01-22	VictordeHollander	NF	no factor from 2^63 to 2^64
2012-06-20	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2012-01-25	Squeeky_Squirrel	NF-PM1	B1=90000, B2=1620000, E=6
2011-05-19	markr	NF	no factor to 2^62
2009-07-06	Carsten Kossendey	NF-PM1	B1=20000, B2=245000
2009-03-10	S485122	NF	no factor from 2^60 to 2^61

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