Question

Express following number as the sum of three prime numbers - :

$21=..........+..........+...........$

Answer 1

Since, we can express number as the sum of three prime numbers.

So, $21=3+5+13$

In this expression $21$ expressed as the sum of the three prime numbers $3,5$ and $13$ .

Hence , we can write $21=3+5+13.$