Factorizer is a Windows program to find factors of numbers up to 2,147,483,646 and to find primes, pairs of primes and Palmen colors of numbers.Or in more detail, Factorizer may be used:· to get the prime decomposition of all numbers in a range of numbers,· to get all factors of a single number or all factors of all numbers in a range,· to find only the prime numbers in a range of numbers,· to find pairs of prime numbers (e.g. 107 and 109) in a certain range,· to count (without displaying) the prime numbers in a range of numbers.· to find Fermat and Mersenne primes