Question

Find the sum of the prime factors of 90.

Answer 1

Step-by-step explanation:

Pair Factors of 90

We can find the pair factors of number 90, by multiplying two numbers in a pair to get the original number as 90, such as;

1 × 90 = 90

2 × 45 = 90

3 × 30 = 90

5 × 18 = 90

6 × 15 = 90

9 × 10 = 90

Therefore, the pair factors of 90 are (1, 90), (2, 45), (3, 30), (5, 18), (6, 15) and (9, 10).

Answer 2

Answer:

11

Step-by-step explanation:

Prime Factors of 90 are

2,3,5,1

sum of prime factores

2+3+5+1=11