Prime Number Calculator

Prime Number Calculator

The prime number calculator helps you quickly find all prime numbers within a specified range. A prime number is a natural number greater than 1 that cannot be divided by any other natural number except 1 and itself. In other words, a prime number has exactly two positive factors: 1 and itself.

Properties of Prime Numbers

• Greater than 1: the smallest prime number is 2.
• Exactly two factors: 1 and itself.
• Infinitely many: the number of primes is infinite (proved by Euclid).
• Unique factorization: any integer greater than 1 is either a prime number or can be uniquely factored into a product of prime numbers.