2 829 863 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
3247585781026406134069343	25	81.4	2021-01-18 18:14:37

ECM

Digits	B1	Curves
25	50000	63 / 280

Estimated T-Level: 21.1 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)	1997-11-29	Rick Pali	0C620EADD840E7C6	0
Verified (Factored)	1999-05-23	Karsten Kroschel	0C620EADD840E7C6	169084
Verified (Factored)	2018-09-10	kkmrkkblmbrbk	0C620EADD840E7C6	19342

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2021-01-19	mrh	BE58658F01E0B0CC	1	890700	5	3

History

Date	User	Type	Result
2021-01-19	curtisc	CERT	PRP Certification Proof certified good
2021-01-19	mrh	C-PRP	M2829863/3247585781026406134069343 : BE58658F01E0B0CC PRP proof power = 7 PRP: Verified Proof certified good
2021-01-18	Zenzoma	F-ECM	Factor: 3247585781026406134069343 / (ECM curve 5, B1=50000, B2=5000000, Sigma=3776180561181618)
2020-01-25	masser	NF-PM1	B1=5000000, B2=200000000, E=12
2019-11-10	masser	NF-PM1	B1=3000000, B2=30000000, E=12
2019-01-04	chuenkit	NF	no factor from 2^67 to 2^68
2018-09-10	kkmrkkblmbrbk	C-LL	0C620EADD840E7C6
2017-10-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-10-07	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
2016-12-15	Joss	NF-PM1	B1=172800
2016-09-22	Joss	NF-PM1	B1=120000, B2=3993000
2016-09-21	Joss	NF-PM1	B1=120000, B2=3630000
2016-09-18	Joss	NF-PM1	B1=120000, B2=3300000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-02-14	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
2012-02-12	markr	NF	no factor from 2^61 to 2^62
2009-02-12	Sturle Sunde	NF	no factor from 2^60 to 2^61

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