Use a factor tree.
172
86, 2
43,2,2
11
3 x 47
2 x 2 x 13 = 52
289 = 17 x 17
2 x 2 x 2 x 3
2 x 3 x 5 x 5 = 150
It is: 2*3*3*5 = 90 or as 2*32*5 = 90
2 x 3 x 5 x 5 x 11 = 1650
The prime numbers (factors) of 172 are: 2 and 43
The 6 factors of 172 are 1 2 4 43 86 172.The prime factors of 172 are 2, 2, and 43.The prime factorization of 172 is 2 x 2 x 43.
2 x 2 x 2 x 2 x 2 x 13 = 416
As a product of its prime factors: 2*2*43 = 172