What is true about prime number?

Answer 1

Here are some facts about prime numbers:
1. Prime numbers have exactly two factors - 1 and the Prime number itself.
2. The only even number that is prime is 2.
3. There are an infinite number of prime numbers.
4. Every number can be uniquely represented as a prime number or a product of prime numbers.

Answer 2

Prime numbers can only be divided by themselves and 1.