Question

6. Find the prime factorization of 1170. Please show all of your work

Answer 1

Since the number ends with 0, its divisible by 10 or 2 and 5
1170 = 117 x 2 x 5
Further, the sum of the digits is 9, it's divisible by 9 or 3 and 3
1170 = 13 x 3 x 3 x 2 x 5 or
1170 = 2 x 3^2 x 5 x 13