Mathematics for IGCSE & O level - Number (Section 1 - No. 45)
Which of the following is NOT a property of prime numbers?
They are only divisible by 1 and themselves.
They are greater than 1.
They are all odd numbers.
They can be used to form the prime factorization of any number.
Εξήγηση
The number 2 is a prime number and is even, therefore, not all prime numbers are odd.