Question

What's the prime factorization of the number 20000?

Answer 1

each zero is a 10 so take those out
20000=2*10*10*10*10
10=2*5 so
2*2*5*2*5*2*5*2*5
2*2*2*2*2*5*5*5*5
(2^5)*(5^4)