2 825 101 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
13887883807315632582112817	26	83.5	2020-12-15 02:51:47

ECM

Digits	B1	Curves
25	50000	57 / 280

Estimated T-Level: 21.0 ⓘ

TF below 2^65 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Robert Clark	549855EEF970A686	0
Verified (Factored)	1999-08-31	George Ray	549855EEF970A686	2593350
Verified (Factored)	2018-09-08	kkmrkkblmbrbk	549855EEF970A686	533889

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-12-15	Jayder	33B8AEB0D94CB498	1	473120	5	3

History

Date	User	Type	Result
2020-12-16	schweigmon	CERT	PRP Certification Proof certified good
2020-12-15	Jayder	C-PRP	M2825101/13887883807315632582112817 : 33B8AEB0D94CB498 PRP proof power = 7 PRP: Verified Proof certified good
2020-12-15	daveward2005	F-ECM	Factor: 13887883807315632582112817 / (ECM curve 6, B1=50000, B2=5000000, Sigma=8765625663925362)
2020-01-24	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-10	masser	NF-PM1	B1=3000000, B2=30000000, E=12
2019-01-03	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-08	kkmrkkblmbrbk	C-LL	549855EEF970A686
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-10-04	Joss	NF-PM1	B1=597196, B2=5971960, E=6
2017-02-25	Joss	NF-PM1	B1=298598, B2=2985980, E=6
2016-12-23	Joss	NF-PM1	B1=207360
2016-09-22	Joss	NF-PM1	B1=120000, B2=3993000
2016-09-21	Joss	NF-PM1	B1=120000, B2=3630000
2016-09-17	Joss	NF-PM1	B1=120000, B2=3300000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^1 to 2^60
2016-02-13	ramgeis	NF	no factor from 2^65 to 2^66
2015-04-21	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-04-21	VictordeHollander	NF	no factor from 2^63 to 2^64
2013-01-10	dbaugh	NF	no factor from 2^62 to 2^63
2012-02-18	markr	NF	no factor from 2^61 to 2^62
2009-02-14	Sturle Sunde	NF	no factor from 2^60 to 2^61

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