The X Factor

chrjue · Post by **chrjue** » Tue Nov 11, 2008 11:13 am

Solved this with an online-tool in a blink of an eye - wow!

http://www.alpertron.com.ar/ECM.HTM

gfoot · Post by **gfoot** » Tue Nov 11, 2008 1:39 pm

I used the same tool, I think. I didn't realise it had finished almost immediately - I thought it was still calculating or something!

W1zard · Post by **W1zard** » Tue Nov 11, 2008 1:46 pm

I used Maple (Pollard's rho method). Time for calculation: 2.28s.

Allosentient · Post by **Allosentient** » Tue Nov 11, 2008 5:53 pm

I had a hard time finding a tool that could do this with large numbers. Took me awhile to find the exact link you mentioned.

aurora · Post by **aurora** » Tue Feb 10, 2009 2:32 pm

someone posted the answer at yahoo answers ... i took it from there.

misterjack · Post by **misterjack** » Mon Mar 09, 2009 1:42 am

aurora wrote:someone posted the answer at yahoo answers ... i took it from there.

hrhr same here

bsguedes · Post by **bsguedes** » Fri Mar 13, 2009 12:48 am

factor() from Maple... easy and fast =]

wynksaiddestroy · Post by **wynksaiddestroy** » Sun May 10, 2009 2:45 am

http://factorization.ath.cx/search.php? ... 9445111971

nuit · Post by **nuit** » Fri Oct 16, 2009 4:58 pm

wau...in a blink mathematica told me...but i used gnu bc to calculate it

whattheh@ck · Post by **whattheh@ck** » Sun Oct 25, 2009 3:28 am

I used python...
it handles large numbers well and i simply wrote a program to increment divisors that matched some simple tests for integer factors and prime numbers. it came up with only six possible values.... just tried them all from there and found the answer

Triton456 · Post by **Triton456** » Tue Nov 03, 2009 1:23 pm

I just used Wolfram|Alpha

Simple, but effective

Also worked for about five other challenges.

http://www.wolframalpha.com/

Greetz,
Triton456

samuelandjw · Post by **samuelandjw** » Thu Jan 07, 2010 6:14 am

use FactorInteger function in mathematica... so fast...

CodeX · Post by **CodeX** » Thu Jan 07, 2010 9:36 am

Maple and Matlab have factor() and Mathematica (so Wolfram Alpha too) has FactorInteger[] but simplest for people not familiar with any of those packages has got to be Wolfram Alpha as its free, online and spares you writing code

There's also some web pages with factoring facilities but they aren't general purpose tools or plain amazing so probably aren't worth a mention

Aghamemnon · Post by **Aghamemnon** » Mon Aug 23, 2010 4:22 am

microsoft math helped me just took .05 seconds

Aghamemnon · Post by **Aghamemnon** » Sat Oct 09, 2010 8:41 pm

Aren't there any coding
I like to do things my self -->to not get bored

hacker.org

The X Factor

The X Factor

Wolfram|Alpha

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