Prime Number Checker

Check if a number is prime, find its factors, generate primes in a range, and visualize the Sieve of Eratosthenes.

46.1Kuses
8.4/10(29)

97 is prime

Even/Odd

Odd

Digits

2

Prev Prime

89

Next Prime

101

Prime Number Checker

A comprehensive prime number tool. Check whether any number is prime, see its factors and prime factorization if it is not. Generate all primes in a given range. Visualize the Sieve of Eratosthenes algorithm step by step.

Features

  • Primality test for numbers up to 1 trillion
  • Factor listing and prime factorization
  • Generate primes in any range
  • Animated Sieve of Eratosthenes visualization

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Disclaimer: This tool is provided as-is for informational and educational purposes only.

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