The number 3 has only two factors, hence it fulfills all the requirements of a prime number. Prime numbers are generally greater than 1 and have just two factors.įor example, 3 is a prime number because it can only be divided by 1 and itself, 3 without leaving a remainder.

This means a number becomes a prime number if it can be divided by 1 and itself without leaving any remainder. What Are Prime Numbers?Ī prime number is any number that is divisible by only 1 and itself. This article gives in-depth details on what is a prime number, properties of a prime number, prime numbers chart, easy ways to find prime numbers, prime numbers list, prime numbers up to 100, and more topics. Basically, prime numbers in maths are numbers with positive integers greater than one with only two factors: one and itself.

Discovered by Eratosthenes, prime numbers are naturally occurring numbers that can be divided only by 1 and itself.