Question

Find the highest common factor of and lowest common multiple of 60 and 150 using prime factors

Answer 1

The highest common factor of 60 and 150 is 30
And the lowest is 10

Answer 2

5

Explanation:

The factors of 60 are: 1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60

The factors of 150 are: 1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150

Then the greatest common factor is 30.

But 30 is not a prime number.

15 is not a prime number.

10 is not a prime number.

6 is not a prime number.

5 is a prime number.

The answer is 5.