Loading calculator...
What is the Prime Number Checker?
The Prime Number Checker determines whether a given integer is a prime number. A prime number is a number greater than 1 that has no positive divisors other than 1 and itself.
How to Use This Calculator
1
Enter an integer.
2
Click 'Calculate' to check if it is prime.
Example Calculation
n = 17
Yes, 17 is a prime number.
Frequently Asked Questions
Pro Tips
- Prime numbers are the building blocks of all integers (Fundamental Theorem of Arithmetic).
- Large prime numbers are used in cryptography.