2 174 269 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
2103819093139133309031198577	28	90.8	2020-06-11 13:56:51

ECM

Digits	B1	Curves
25	50000	84 / 280

Estimated T-Level: 21.5 ⓘ

TF below 2^66 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		phil kenny	5C7B305C9465C55E	0
Verified (Factored)	1999-02-21	James Arnold	5C7B305C9465C55E	131175
Verified (Factored)	2018-04-12	kkmrkkblmbrbk	5C7B305C9465C55E	847496

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-11	mnd9	DF993FCE5116D021	1	1972371	5	3
Verified	2020-06-12	Klaus Nordmann	DF993FCE5116D021	1	1547734	5	3

History

Date	User	Type	Result
2020-06-12	Klaus Nordmann	C-PRP	M2174269/2103819093139133309031198577 : DF993FCE5116D021 PRP: Verified PRP without proof (not generated)
2020-06-11	mnd9	C-PRP	M2174269/2103819093139133309031198577 : DF993FCE5116D021 PRP: Verified PRP without proof (not generated)
2020-06-11	mnd9	F-ECM	Factor: 2103819093139133309031198577 / (ECM curve 3, B1=50000, B2=5000000, Sigma=4235820477275057)
2019-11-13	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	5C7B305C9465C55E
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
2015-12-20	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=149040
2014-06-13	Joss	NF-PM1	B1=119520
2013-01-23	dbaugh	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
2009-01-07	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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