Question

what is the highest common factor of 7 and 9​

Answer 1

Answer:

1

Step-by-step explanation:

The number 7 is a prime number so it is divisible by 1 and itself

it means it has 2 factors - 1 & 7

and the factors of 9       - 1, 3,9

so the number common is 1 and no other factors are common so 1 will

be the hcf of 7 & 9