Thread: mods

Is 2008! divisible by ?

I figure this uses mods somewhere......can someone show me a nice place to start?

Hello,

Originally Posted by Showcase_22

Is 2008! divisible by ?

I figure this uses mods somewhere......can someone show me a nice place to start?

How many multiples of 3 are there between 1 and 2009 ?

Spoiler:

Spoiler:

is it possible to have 800 3's in the prime decomposition of 2008! ?

right, I think I getcha!





(Whose formula is this known as? Is it De pognac's?)

So it is possible to have 800 3's in the prime decomposition of 2008!

Thanks Moo

P.S: How do you get those really cool spoiler windows to appear?

Originally Posted by Showcase_22

right, I think I getcha!

Yes

Whew...I struggled with finding these threads :
http://www.mathhelpforum.com/math-he...orization.html
http://www.mathhelpforum.com/math-he...ation-2-a.html
They may give you further insight on the formula

(Whose formula is this known as? Is it De pognac's?)

I don't know the name
But I looked for de Pognac and didn't find anything significant

P.S: How do you get those really cool spoiler windows to appear?

With the [spoiler][/spoiler] tags

okay, i'll read through those threads.

Meanwhile, I found out whose formula this is:

De Polignac's formula - Wikipedia, the free encyclopedia