31 is already prime; no method required.
40 20,2 10,2,2 5,2,2,2
The easiest way to notate the process of finding a prime factorization is a factor tree.
49 7,7
Multiples of 54
They are: 5*5*7 = 175
145 5,29
139 is already prime; no factorization required.
40 20,2 10,2,2 5,2,2,2
55 5,11
The easiest way to notate the process of finding a prime factorization is a factor tree.
The prime factorization.
470 Divide by two. 235,2 Divide by five. 47,5,2 Stop. All the factors are prime.
It is: 2*2*2*2*2*2 = 64 or as 26 = 64
25 5,5
1997 is already prime; no tree.
3^2*5*2^3
2x2x222