Question

We need blocks to build a building. In the same way _______ are basic blocks to form all natural numbers .

• A. prime numbers
• B. real numbers
• C. unique numbers
• D. negative numbers

Answer 1

The correct option is A prime numbers

Let us consider some examples.

$10=2\times 5$, we need $2$ and $5$ which are prime numbers to get a new number $10$.
$12=2\times 2\times 3$, we need $2$ and $3$ which are prime numbers to get a new number $12$.
Therefore$,$ $A$ is the correct answer.