1 831 681 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
539214926691046103249	21	68.9	2019-12-04 13:55:45

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	107 / 640

Estimated T-Level: 25.8 ⓘ

TF below 2^81 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Bad		Edesio Costa e Silva	ED733D7F43389AA5	0
Verified (Factored)	1998-12-13	Sam Laur	3AD24165AB6FB249	1229796
Verified (Factored)	1999-01-29	Sam Laur	3AD24165AB6FB249	0
Verified (Factored)	2002-11-09	S57483	3AD24165AB6FB249	1660831
Verified (Factored)	2016-04-30	kkmrkkblmbrbk	3AD24165AB6FB249	24375

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-12-05	xyuzyz	4D494D26F3AE240D	1	311112	5	3
Verified	2019-12-06	marssystems	4D494D26F3AE240D	1	421090	5	3

History

Date	User	Type	Result
2019-12-06	marssystems	C-PRP	M1831681/539214926691046103249 : 4D494D26F3AE240D PRP: Verified PRP without proof (not generated)
2019-12-05	xyuzyz	C-PRP	M1831681/539214926691046103249 : 4D494D26F3AE240D PRP: Verified PRP without proof (not generated)
2019-12-04	daveward2005	F-ECM	Factor: 539214926691046103249 / (ECM curve 1, B1=50000, B2=5000000)
2019-07-01	TJAOI	NF	no factor from 2^67 to 2^68
2018-09-10	Joss	NF-PM1	B1=1831681, B2=183168100, E=12
2018-08-17	Joss	NF-PM1	B1=1831681, B2=93415731, E=12
2018-03-19	TJAOI	NF	no factor from 2^66 to 2^67
2016-04-30	kkmrkkblmbrbk	C-LL	3AD24165AB6FB249
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2016-02-23	Mark Rose	NF	no factor from 2^62 to 2^63
2016-02-23	Mark Rose	NF	no factor from 2^61 to 2^62
2015-09-04	ramgeis	NF	no factor from 2^65 to 2^66
2015-06-22	mikr	NF-PM1	B1=2780000, B2=91760000, E=12
2015-04-26	snme2pm1	NF	no factor from 2^64 to 2^65
2015-04-26	snme2pm1	NF	no factor from 2^63 to 2^64
2014-09-22	Joss	NF-PM1	B1=170082
2014-05-19	Joss	NF-PM1	B1=135041
2011-02-10	Carsten Kossendey	NF-PM1	B1=100000, B2=1675000, E=6
2011-01-21	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-16	Architects Cubed	NF	no factor from 2^60 to 2^61

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