Question

what is the hcf of 30 and 40

Answer 1

Step-by-step explanation:

The greatest common factor of 30 and 40 is 10.

To find the greatest common factor, start by identifying all the factors for each of the numbers.

The factors for 30 are: 1, 2, 3, 5, 6, 10, 15, and 30.

The factors of 40 are: 1, 2, 4, 5, 8, 10, 20 and 40.

Now, compare the two lists of factors. The numbers that appear on both lists are the factors that 30 and 40 share. In other words, they are the common factors of 30 and 40. These numbers appear on both factor lists: 1, 2, 5, and 10. Of these common factors, which number is greatest? 10 is greater than 1, 2, and 5, so 10 is the greatest common factor of 30 and 40.

Answer 2

HCF of 30 and 40 is 10 ...

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