Try dividing 36 by all the given options.

Recall first 10 prime and composite numbers.

Think about the 25 times table.

from the given options think about the numbers which only comes in the times table of 1 and itself.

Think about the sum of the factors of 6.

Take any prime number and think about the different times table in which it would come.

Think of the definition of prime numbers.

Take any composite number and then think about different times table in which it would come.

Find the factors of the given pairs.

Think of your 100 times table.