406 531 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
14016814249393869094003495462986551	35	113.4	2019-04-24 01:01:44

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	618 / 640

Estimated T-Level: 29.8 ⓘ

TF below 2^94 is very unlikely to find new factors due to ECM effort.

Status	Date	User	Residue	Shift
Verified (Factored)		David Slowinski	1BD5	0
Verified (Factored)		Curtis Scott	E362FCFA2E7A5BD5	0
Verified (Factored)		Eivind Triel	E362FCFA2E7A5BD5	57106
Verified (Factored)	2002-02-03	Dennis Pope	E362FCFA2E7A5BD5	123855

PRP Cofactor

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2019-04-24	artorollo	E5DAC0D0A26D5C44	1	240964	5	3
Verified	2019-04-26	arnaud	E5DAC0D0A26D5C44	1	204377	5	3

History

Date	User	Type	Result
2019-04-26	arnaud	C-PRP	M406531/14016814249393869094003495462986551 : E5DAC0D0A26D5C44 PRP: Verified PRP without proof (small exponent)
2019-04-24	artorollo	C-PRP	M406531/14016814249393869094003495462986551 : E5DAC0D0A26D5C44 PRP: Verified PRP without proof (small exponent)
2019-04-24	alex	F-ECM	Factor: 14016814249393869094003495462986551 / (ECM curve 368, B1=250000, B2=25000000, Sigma=5199873823656109)
2018-11-30	Gordon Spence	NF	no factor from 2^65 to 2^66
2017-12-14	Gordon Spence	NF	no factor from 2^64 to 2^65
2016-09-07	Joss	NF-PM1	B1=10000000, B2=720000000, E=12
2016-06-22	Joss	NF-PM1	B1=10000000, B2=360000000, E=12
2016-05-20	Joss	NF-PM1	B1=10000000, B2=180000000, E=12
2016-05-13	Numberwang	NF-PM1	B1=4545, B2=113625
2016-02-23	Mark Rose	NF	no factor from 2^58 to 2^60
2015-11-08	Gordon Spence	NF	no factor from 2^63 to 2^64
2015-11-08	Gordon Spence	NF	no factor from 2^62 to 2^63
2015-07-14	NR	NF	no factor from 2^61 to 2^62
2011-05-05	Sid & Andy	NF	no factor from 2^60 to 2^61
2011-02-14	Rob_Dee	NF-PM1	B1=5000000, B2=140000000, E=12
2011-02-13	Rob_Dee	NF-PM1	B1=5000000, B2=130000000, E=12
2011-02-12	Rob_Dee	NF-PM1	B1=5000000, B2=120000000, E=12
2011-02-11	Rob_Dee	NF-PM1	B1=5000000, B2=110000000, E=12
2011-02-10	Rob_Dee	NF-PM1	B1=5000000, B2=100000000, E=12
2011-02-09	Rob_Dee	NF-PM1	B1=5000000, B2=90000000, E=12
2011-02-08	Rob_Dee	NF-PM1	B1=5000000, B2=80000000, E=12
2011-02-07	Rob_Dee	NF-PM1	B1=5000000, B2=70000000, E=12
2011-02-06	Rob_Dee	NF-PM1	B1=5000000, B2=60000000, E=12
2011-02-05	Rob_Dee	NF-PM1	B1=5000000, B2=50000000, E=12
2011-02-04	Rob_Dee	NF-PM1	B1=5000000, B2=40000000, E=12
2011-02-03	Rob_Dee	NF-PM1	B1=5000000, B2=30000000, E=12
2011-02-02	Rob_Dee	NF-PM1	B1=5000000, B2=20000000, E=12
2011-02-01	Rob_Dee	NF-PM1	B1=5000000, B2=10000000, E=6
2010-11-02	-Anonymous-	NF-PM1	B1=5000000

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