Prime Checker
Primality test and prime factorization.
Verdict
Not prime
Digit count
12
Factor count
4
Prime factorization
600851475143 = 71 ร 839 ร 1471 ร 6857
Primality uses deterministic Miller-Rabin (correct for all n < 3.3ร10^24). Factorization is trial division, so huge semiprimes may stay unfactored.