Hello folks,

I have uploaded to

https://www.alpertron.com.ar/POLFACT.HTM a calculator that can factor polynomials over the integers or modulo a power of a prime. It also can find exact roots of polynomials expressed with radical expressions.

At this moment the roots are shown only if the degree of the irreducible factor of the input polynomial is <= 5. It also indicates when the quintic equation cannot be expressed as radical expressions.

Please let me know if there is any error.