1 668 427 Exponent Status

PrimeNet Exponent Status

M_n

Status

Details

Factored

Factor	Digits	Bits	Date
13944424336872914783928823	26	83.5	2016-10-18 16:36:16

ECM

Digits	B1	Curves
25	50000	280 / 280
30	250000	108 / 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
Verified (Factored)		Brian Schmid	51C218FF686AC7DA	0
Verified (Factored)	1999-03-01	David Campeau	51C218FF686AC7DA	1021713
Verified (Factored)	2015-07-19	MadPoo	51C218FF686AC7DA	17154

Status	Date	User	Residue	Number of known factors	Shift	Type	Base
Verified	2017-10-02	Oliver Kruse	9D4B5A1E43C49C1D	1	0	1	3
Verified	2017-11-03	kkmrkkblmbrbk	9D4B5A1E43C49C1D	1	394957	1	3

History

Date	User	Type	Result
2017-11-03	kkmrkkblmbrbk	C-PRP	M1668427/13944424336872914783928823 : 9D4B5A1E43C49C1D PRP: Verified PRP without proof (not generated)
2017-10-02	Oliver Kruse	C-PRP	M1668427/13944424336872914783928823 : 9D4B5A1E43C49C1D PRP: Verified PRP without proof (not generated)
2016-10-18	bam	F-ECM	Factor: 13944424336872914783928823 / (ECM curve 2, B1=50000, B2=5000000)
2016-02-23	Mark Rose	NF	no factor from 2^57 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
2015-10-11	ramgeis	NF	no factor from 2^65 to 2^66
2015-07-19	MadPoo	C-LL	51C218FF686AC7DA
2015-05-12	monst	NF	no factor from 2^64 to 2^65
2015-05-11	omylist	NF	no factor from 2^63 to 2^64
2012-03-01	Axon	NF-PM1	B1=1000000, B2=20000000, E=12
2012-03-01	Axon	NF-PM1	B1=1000000, B2=8000000, E=12
2012-02-29	Axon	NF-PM1	B1=1000000
2012-02-29	Axon	NF-PM1	B1=900000
2012-02-29	Axon	NF-PM1	B1=800000
2012-02-29	Axon	NF-PM1	B1=700000
2012-02-29	Axon	NF-PM1	B1=600000
2012-02-29	Axon	NF-PM1	B1=500000
2012-02-29	Axon	NF-PM1	B1=400000
2012-02-29	Axon	NF-PM1	B1=300000
2012-02-29	Axon	NF-PM1	B1=200000
2012-02-29	Axon	NF-PM1	B1=100000
2010-08-22	GrunwalderGIMP	NF	no factor from 2^1 to 2^63
2010-04-30	Architects Cubed	NF	no factor from 2^60 to 2^61

Username
Password