2 191 619 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
16276252063631213496562448671	29	93.7	2020-03-02 01:07:31

ECM

Digits	B1	Curves
25	50000	164 / 280

Estimated T-Level: 22.9 ⓘ

TF below 2^71 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Bryan Koen	30B98FC9AFDE35C0	0
Verified (Factored)	1999-02-07	Ethan Hansen	30B98FC9AFDE35C0	1891037
Verified (Factored)	2018-04-15	kkmrkkblmbrbk	30B98FC9AFDE35C0	1205040

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-03-02	Jinyuan Wang	230951D94F2BFA60	1	1147935	5	3
Verified	2020-03-07	roemer2201	230951D94F2BFA60	1	1006427	5	3

History

Date	User	Type	Result
2020-03-07	roemer2201	C-PRP	M2191619/16276252063631213496562448671 : 230951D94F2BFA60 PRP: Verified PRP without proof (not generated)
2020-03-02	Jinyuan Wang	C-PRP	M2191619/16276252063631213496562448671 : 230951D94F2BFA60 PRP: Verified PRP without proof (not generated)
2020-03-02	mnd9	F-ECM	Factor: 16276252063631213496562448671 / (ECM curve 2, B1=50000, B2=5000000, Sigma=8185608410851241)
2019-04-08	TJAOI	NF	no factor from 2^67 to 2^68
2018-04-15	kkmrkkblmbrbk	C-LL	30B98FC9AFDE35C0
2018-03-08	mikr	NF-PM1	B1=2500000, B2=125000000, E=12
2016-12-01	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
2016-02-16	Joss	NF-PM1	B1=442027, B2=4420270, E=6
2016-01-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-03-28	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-03-28	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-12	Joss	NF-PM1	B1=148572
2014-06-26	-Anonymous-	NF-PM1	B1=119286
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2011-01-11	markr	NF-PM1	B1=90000, B2=1620000, E=6
2010-11-09	Joss	NF-PM1	B1=30000
2010-11-04	Joss	NF-PM1	B1=15000
2009-01-09	Sturle Sunde	NF	no factor from 2^61 to 2^62
2009-01-02	Sturle Sunde	NF	no factor from 2^60 to 2^61

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