My number is between 40 and 50. It is prime.

Both 43 and 47 are prime. Which would you prefer?

Isnt 41 also prime?

Oops - so it is!

To determine if a number is prime, you need to check if it is divisible by any number other than 1 and itself. In this case, you want to find a prime number between 40 and 50.

To start, let's list the numbers between 40 and 50: 41, 42, 43, 44, 45, 46, 47, 48, 49, 50.

To check if each number is prime, we need to divide it by all numbers less than it (excluding 1), and see if there are any divisors other than 1 and itself.

Let's analyze each number:
- 41: We divide it by all numbers less than it. It is not divisible by any of the numbers from 2 to 40, so it is prime.

Therefore, the only prime number between 40 and 50 is 41.