Question

3. If a number is divisible by 63, then it is also divisible by (a) 7 (b) 11 (c) 13 (d) 17

Answer 1

If a number is divisible by 63 then it will be divisible by all the factors of 63

Factors of 63 = 3 × 3 × 7

Since 7 is in the options ∴ Option (a) 7 is the correct answer

Answer 2

Answer:

Option a - 7

Step-by-step explanation:

Given : If a number is divisible by 63.

To find : It is also divisible by ?

Solution :  

First we factor 63,

$63=3\times 3\times 7$

So, The multiple of 63 also divides the number divisible by 63.

Therefore, 7 also divides the number divisible by 63.

Option 'a' is correct.