Question

Express $31$ as the sum of three odd prime numbers?

Answer 1

Prime Numbers:The numbers which have only two factors $1$ and itself are called Prime Numbers.

$$\begin{gathered} \mathrm{31=3+11+17} \\ \mathrm{Or}31=5+7+19 \end{gathered}$$

So $31$ can be expressed as sum of $3,11\mathrm{and}17$ or $5,7\mathrm{and}19$