Question

Consider the following numbers.
1. $247$
2. $203$
Which of the above number is/are prime?

• A. $1$ only
• B. $2$ only
• C. Both $1$ and $2$
• D. Neither $1$ nor $2$

Answer 1

The correct option is D Neither $1$ nor $2$

A number which is divisible by itself and $1$ are prime numbers.

1. $247=13\times 19$
2. $203=7\times 79$

Here both the numbers have some divisors.
So, none of the two are prime.