Given a number pq that is the product of two positive integers p and q, is there any way of finding with good precision, (p-1)(q-1)? Or any approximation at the least?(adsbygoogle = window.adsbygoogle || []).push({});

Thanks in advance! :D

**Physics Forums | Science Articles, Homework Help, Discussion**

Join Physics Forums Today!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

# Number theory doubt

**Physics Forums | Science Articles, Homework Help, Discussion**