2 614 303 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
94286373215560002099130008156415246687079887097	47	156.0	2023-01-15 17:28:26

ECM

Digits	B1	Curves
25	50000	166 / 280

Estimated T-Level: 23.0 ⓘ

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

Status	Date	User	Residue	Shift
Verified (Factored)		Stephan Grupp	840F609EA51406CF	0
Verified (Factored)	1999-04-02	James Arnold	840F609EA51406CF	1220162
Verified (Factored)	2018-06-30	kkmrkkblmbrbk	840F609EA51406CF	1662541

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2023-01-15	kurly	C21A4A6A541AC581	1	1000779	5	3

P-1 factors

Date	Factor	B1	B2
2023-01-15	94286373215560002099130008156415246687079887097	20000000	52108682010

History

Date	User	Type	Result
2023-01-16	Johannes N	CERT	PRP Certification Proof certified good
2023-01-15	kurly	C-PRP	M2614303/94286373215560002099130008156415246687079887097 : C21A4A6A541AC581 PRP proof power = 7 PRP: Verified Proof certified good
2023-01-15	kurly	F-PM1	Factor: 94286373215560002099130008156415246687079887097 / (P-1, B1=20000000, B2=52108682010)
2022-12-31	Architects Cubed	NF	no factor from 2^69 to 2^70
2022-11-30	Joss	NF-PM1	B1=1000000, B2=449428980
2021-06-03	TJAOI	NF	no factor from 2^68 to 2^69
2019-10-14	masser	NF-PM1	B1=2614303, B2=26143030, E=12
2019-04-29	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-30	kkmrkkblmbrbk	C-LL	840F609EA51406CF
2017-08-28	Gordon Spence	NF	no factor from 2^66 to 2^67
2017-07-20	Joss	NF-PM1	B1=400000, B2=4000000, E=6
2016-05-23	Joss	NF-PM1	B1=200000, B2=3600000, E=6
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2016-01-16	ramgeis	NF	no factor from 2^65 to 2^66
2015-02-18	VictordeHollander	NF	no factor from 2^64 to 2^65
2015-02-18	VictordeHollander	NF	no factor from 2^63 to 2^64
2014-10-12	Joss	NF-PM1	B1=124551
2013-01-14	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-25	markr	NF	no factor from 2^61 to 2^62
2010-12-13	markr	NF-PM1	B1=100000, B2=2125000, E=6
2010-11-17	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

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