Question

\(\large 40!^{40!}\) ends with how many Zeros:

a) 40!
b) \(8 \times \) 40!
c) \(9 \times \) 40!
d) \(\large 8^{40!}\)

Answer 1

10 divides n, iff 2 divides and 5 divides n

Answer 2

Now use the completely additive property of p adic orders

Answer 3

My bad its 9*40!

Answer 4

took the wrong order I measured 2 instead of 5

Answer 5

Oh wow!

I know nil of it..

Can you teach me from the beginning??

Answer 6

How much number theory do you know

Answer 7

Do you know about arithmetic functions?

Answer 8

No...