Correct Answer - Option 4 : 12
Concept used:
Prime number: A positive integer that has only 2 factors 1 and number itself.
1 is neither prime nor composite
Calculation:
Between 1 and 40 prime numbers are 2, 3, 5, 7, 11, 13, 17, 19, 23, 29, 31, 37.
∴ The total prime number between 1 and 40 is 12
The correct option is 4 i.e. 12