Question

A number is divisible by 5 and 8 both. By what numbers will that number be always divisible? ​

Answer 1

1 is the ans because 1 is the hcf of 5 and 8

Answer 2

The number is divisible by 5 and 8.

Since 5 and 8 are co-prime numbers so the number must be divisible by the product 5 × 8 = 40.

So, the given number will always be divisible by 40.