Coprime Calculator

Coprime (or Relatively Prime or Mutually Prime) numbers
have no common factors other than 1

Enter two numbers and see the results live:


Useful for Fractions


When we simplify a fraction as much as possible, then the top and bottom numbers (the numerator and denominator) are coprime.

610 = 35

If the top and bottom numbers of a fraction are not coprime (like 6 and 10 that share the factor 2), then we can simplify the fraction.


coprime table
Coprime Table 1 to 12