Question

A no is divisible by 45 so it must be divisible by _____ and ____ also​

Answer 1

Answer:

If a number is divisible by two co-prime numbers, then the number is divisible by their product also. We know that 45 = 9 × 5 where 9 and 5 are co-prime numbers. Also, 9 and 5 are factors of 45.

Answer 2

Answer:

3 and 5

Step-by-step explanation:

a number is divisible by 3, if sum of all its digits is divisible by 3.

45= 4+5 =9 divisible by the 3

a number is divisible by 5, if it ends in 0 or 5.