[Sayf-Allah]

Hi

I just can't figure out what the formula is for the following row of numbers....

1 1 2 6 24 120....

I know it's like this
1 2 3 4 5 6....
1 1 2 6 24 120...

1x1=1 1x2=2 2x3=6 and so on

But for some reason I can't find a formula for this....

Anyone able to help with this?

[Ghoser777]

It looks like the factorial function.

0! = 1
1! = 1
2! = 2
3! = 6
4! = 24
5! = 120

Etc.

[Sayf-Allah]

Ah, of course!

Knew it was simple.

Thanks!

[gradient]

I don't get it. Totally my fault for dropping out of highschool math, of course.

[Sayf-Allah]

Originally Posted by gradient 

I don't get it. Totally my fault for dropping out of highschool math, of course.

3! = 1x2x3
4! = 1x2x3x4
5! = 1x2x3x4x5

and so forth.