What is the hcf of 18 and 40?

Answer 1

The highest common factor (HCF) of 18 and 40 is the largest positive integer that divides both 18 and 40 without leaving a remainder. To find the HCF, you can determine the prime factors of each number. The prime factors of 18 are 2 x 3^2, and the prime factors of 40 are 2^3 x 5. To find the HCF, you take the common prime factors with the lowest exponent, which in this case is 2. Therefore, the HCF of 18 and 40 is 2.

Answer 2

Oh honey, the highest common factor (HCF) of 18 and 40 is 2. It's like finding the perfect pair of shoes in a sea of flip-flops - rare but oh so satisfying. So, there you have it, 2 is the magic number that goes into both 18 and 40 without any leftovers.

Answer 3

Oh, dude, the highest common factor of 18 and 40 is 2. It's like the cool kid that both 18 and 40 can hang out with without any jealousy. So yeah, the HCF is 2, they're like the trio that just clicks, you know.

Answer 4

The HCF of the numbers 18 and 40 is 2.

Answer 5

2