Prime Number Calculator
Check if a number is prime, find primes in a range, or find the nth prime number.
Complete User Guide
Use the tabs to check a number, find primes in a range, or get the nth prime number.
The Mathematical Formula
A prime p has no divisors other than 1 and p itself
A prime number is a natural number greater than 1 that has no positive divisors other than 1 and itself.
Frequently Asked Questions
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