# Who can calculate this?

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• December 29th 2010, 09:40 PM
Hamed
Who can calculate this?
I want to calculate this;
Please check attachment!
• December 29th 2010, 09:46 PM
Prove It
Click here.

Alternatively

$\displaystyle \frac{{3117\choose{56}}{3248\choose{56}}}{{6235\ch oose{113}}} = \frac{\frac{3117!}{56!\,3061!}\cdot\frac{3248!}{56 !\,3192}}{\frac{6235!}{113!\,6122!}}$

Simplify if you can.
• December 29th 2010, 09:47 PM
Hamed
Thanks very good website!
Do you know fact of which number is need to 10^18 ??
• December 30th 2010, 12:06 AM
CaptainBlack
Quote:

Originally Posted by Hamed
I want to calculate this;
Please check attachment!

Why do you need to know this?

CB
• December 31st 2010, 03:33 AM
HallsofIvy
Quote:

Originally Posted by Hamed
Thanks very good website!
Do you know fact of which number is need to 10^18 ??

???
No need for a calculator $10^{18}$ is
1 000 000 000 000 000 000, a "1" with 18 "0"s. Or did you mean something else?