2 903 657 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
440002242039376564581623	24	78.5	2021-12-20 10:22:14

ECM

Digits	B1	Curves
25	50000	106 / 280

Estimated T-Level: 21.9 ⓘ

TF below 2^68 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Kim Neve	A8787022BD554636	0
Verified (Factored)	1999-05-02	Goede Schueler/Christoph Steinbeck	A8787022BD554636	1915723
Verified (Factored)	2018-10-01	kkmrkkblmbrbk	A8787022BD554636	335717

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-12-27	GAN	187C9034A43550E9	1	2477012	5	3

History

Date	User	Type	Result
2021-12-27	John Airey	CERT	PRP Certification Proof certified good
2021-12-27	GAN	C-PRP	M2903657/440002242039376564581623 : 187C9034A43550E9 PRP proof power = 7 PRP: Verified Proof certified good
2021-12-20	daveward2005	F-ECM	Factor: 440002242039376564581623 / (ECM curve 7, B1=50000, B2=5000000, Sigma=1778369758141228)
2021-06-07	TJAOI	NF	no factor from 2^68 to 2^69
2020-03-18	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2018-12-17	chuenkit	NF	no factor from 2^67 to 2^68
2018-10-01	kkmrkkblmbrbk	C-LL	A8787022BD554636
2018-02-17	Joss	NF-PM1	B1=2903657, B2=5807314, E=6
2018-02-16	Joss	NF-PM1	B1=2903657
2018-02-13	Joss	NF-PM1	B1=2488320
2018-02-12	Joss	NF-PM1	B1=2073600
2018-02-07	Joss	NF-PM1	B1=1728000
2018-02-07	Joss	NF-PM1	B1=1440000
2018-02-04	Joss	NF-PM1	B1=1200000
2017-11-16	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-22	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-07	dbaugh	NF	no factor from 2^62 to 2^63
2011-12-11	Grant McCracken	NF	no factor from 2^61 to 2^62
2010-05-15	Rob_Dee	NF-PM1	B1=1000000, B2=1100000
2010-05-14	Rob_Dee	NF-PM1	B1=900000, B2=1000000
2010-05-13	Rob_Dee	NF-PM1	B1=800000, B2=900000
2010-05-12	Rob_Dee	NF-PM1	B1=700000, B2=800000
2010-05-11	Rob_Dee	NF-PM1	B1=600000, B2=700000
2010-05-10	Rob_Dee	NF-PM1	B1=500000, B2=600000
2010-05-09	Rob_Dee	NF-PM1	B1=400000, B2=500000
2010-05-08	Rob_Dee	NF-PM1	B1=300000, B2=400000
2010-05-07	Rob_Dee	NF-PM1	B1=200000, B2=300000
2010-05-06	Rob_Dee	NF-PM1	B1=100000, B2=200000
2009-07-03	Carsten Kossendey	NF-PM1	B1=15000, B2=168750
2009-02-13	Sturle Sunde	NF	no factor from 2^60 to 2^61

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