What is the HCF of 45 and 36?

Answer 1

Oh honey, the Highest Common Factor (HCF) of 45 and 36 is 9. It's like finding the one friend who can handle both your drama and your jokes - they just click. So, 9 is the magic number that can divide both 45 and 36 without any leftovers.

Answer 2

To find the HCF of two numbers you first have to split them into their prime factors:

45 = 3x3x5

36 = 2x2x3x3

The next step is to identify any common prime factors. In this example, both numbers have two 3s as prime factors. Multiply these together and you get:

3x3 = 9

Thus the hcf of 45 and 36 is 9.

Answer 3

9