2 175 587 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
1735973088489305752799	22	70.6	2020-02-03 05:18:50

ECM

Digits	B1	Curves
25	50000	100 / 280

Estimated T-Level: 21.8 ⓘ

TF below 2^67 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Jeff Woods	7E24744AC01EDC8E	0
Verified (Factored)	1999-02-14	Team_HWR	7E24744AC01EDC8E	2122822
Verified (Factored)	2018-04-12	kkmrkkblmbrbk	7E24744AC01EDC8E	1530320

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-02-04	Christoph Zenger	BB9B866DF2007F7B	1	1008795	5	3
Verified	2020-02-06	Chang Chia-Tche	BB9B866DF2007F7B	1	750386	5	3

History

Date	User	Type	Result
2020-02-06	Chang Chia-Tche	C-PRP	M2175587/1735973088489305752799 : BB9B866DF2007F7B PRP: Verified PRP without proof (not generated)
2020-02-04	Christoph Zenger	C-PRP	M2175587/1735973088489305752799 : BB9B866DF2007F7B PRP: Verified PRP without proof (not generated)
2020-02-03	mnd9	F-ECM	Factor: 1735973088489305752799 / (ECM curve 1, B1=50000, B2=5000000, Sigma=5480957002012869)
2019-11-18	mikr	NF-PM1	B1=5000000, B2=200000000, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-12	kkmrkkblmbrbk	C-LL	7E24744AC01EDC8E
2016-11-17	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-01-02	ramgeis	NF	no factor from 2^65 to 2^66
2015-12-22	HBendtz	NF-PM1	B1=700000, B2=21000000, e=12
2015-03-25	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-25	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-05	Joss	NF-PM1	B1=149004
2014-06-13	Joss	NF-PM1	B1=119502
2013-09-09	ramgeis	NF	no factor from 2^62 to 2^63
2011-01-15	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-07	Joss	NF-PM1	B1=30000
2010-11-05	Joss	NF-PM1	B1=15000
2009-01-06	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-04	Sturle Sunde	NF	no factor from 2^60 to 2^61

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