Factoring Calculator

This tool factors either a whole number or a one-variable polynomial with whole-number coefficients. Give it a number up to ten million and it returns the prime factorization, every factor, the factor pairs and how many there are. Give it the coefficients of a polynomial of degree 4 or less, highest power first, and it takes out the greatest common factor, any power of x and every linear factor with a rational root. Whatever is left is shown as it stands, with a line saying whether it can factor any further.