2 515 039 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
591007351346219757953	21	69.0	2020-06-29 06:34:28

ECM

Digits	B1	Curves
25	50000	43 / 280

Estimated T-Level: 20.8 ⓘ

TF below 2^64 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		Michael B. Clark	ECF244B72AC7AA29	0
Verified (Factored)	1999-04-23	Patrick Prentiss	ECF244B72AC7AA29	1514934
Verified (Factored)	2018-06-05	kkmrkkblmbrbk	ECF244B72AC7AA29	1540892

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2020-06-29	M Miller	8B3DAC520C1AE9B5	1	360176	5	3
Verified	2020-06-30	marssystems	8B3DAC520C1AE9B5	1	622560	5	3

History

Date	User	Type	Result
2020-06-30	marssystems	C-PRP	M2515039/591007351346219757953 : 8B3DAC520C1AE9B5 PRP: Verified PRP without proof (not generated)
2020-06-29	M Miller	C-PRP	M2515039/591007351346219757953 : 8B3DAC520C1AE9B5 PRP: Verified PRP without proof (not generated)
2020-06-29	mnd9	F-ECM	Factor: 591007351346219757953 / (ECM curve 2, B1=50000, B2=5000000, Sigma=2846486690152297)
2019-05-06	TJAOI	NF	no factor from 2^67 to 2^68
2018-06-05	kkmrkkblmbrbk	C-LL	ECF244B72AC7AA29
2018-05-13	mikr	NF-PM1	B1=4500000, B2=210000000, E=12
2018-04-14	mikr	NF-PM1	B1=3000000, B2=135000000, E=12
2017-11-01	Joss	NF-PM1	B1=600000, B2=6000000, E=6
2017-07-31	Gordon Spence	NF	no factor from 2^66 to 2^67
2016-02-23	Mark Rose	NF	no factor from 2^59 to 2^60
2015-11-05	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
2013-01-23	dbaugh	NF	no factor from 2^62 to 2^63
2012-06-13	Sebastian Hornbostel	NF	no factor from 2^61 to 2^62
2011-03-03	James Heinrich	NF-PM1	B1=300000, B2=8000000, E=12
2011-01-06	Joss	NF-PM1	B1=50000
2011-01-01	Joss	NF-PM1	B1=30000
2010-12-19	Joss	NF-PM1	B1=20000
2009-01-31	Sturle Sunde	NF	no factor from 2^60 to 2^61

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