. The number which is neither prime nor composite is


A: 3

B: 1

C: 2

D: 5

 

Best Answer

Explanation:

  • The numbers which can only be divided by itself and 1 are called prime numbers.
  • The number which can be divided by itself, 1, and certain other numbers are called composite numbers.

Option B is correct:

  • The number ‘1’ has only one factor, that is 1 (itself).
  • Hence, it cannot be said prime or composite.

Options A, C, and D are incorrect:

  • The numbers 3, 2, and 5 are prime numbers as they have two factors each - themselves and 1.

Final Answer:

Option B is correct, that is,

The number which is neither prime nor composite is 1.

Talk to Our counsellor