What is a Prime Number?

A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself. Prime numbers are fundamental in number theory because they are the “building blocks” of the integers, similar to how atoms are the building blocks of matter.

Mathematicians’ Perspectives:

• Euclid: One of the earliest mathematicians to study prime numbers, Euclid proved that there are infinitely many prime numbers.
• Carl Friedrich Gauss: Known for his contributions to number theory, Gauss studied the distribution of prime numbers and developed the Prime Number Theorem.
• Leonhard Euler: Euler made significant contributions to the understanding of prime numbers, including work on the distribution of primes and the introduction of the Euler product formula.

How to Use the Prime Number Calculator

1. Input Number: Enter a natural number greater than 1 in the input field.
2. Click “Check”: The calculator will determine if the entered number is a prime number and provide a detailed explanation.
3. Click “Clear”: To reset the input field and clear the result for a new check.

Example: If you enter the number 7, the calculator will determine that 7 is a prime number and explain that 7 is only divisible by 1 and itself.

With the Prime Number Calculator online, you can easily check if a number is prime without manual calculations, making it a useful tool for students and educators alike.