Solution

163212

Problem / game
Euler's Totient Function Back to problem
First name
Siddharth
School
Bishop Vesey's Grammar School
Country
United Kingdom, UK
Age
0

A prime number is a number whose only factors are 1 and itself. Therefore, for a prime number p, the only number less than p that shares a factor with p is 1. Therefore, phi of p will always be equal to 1.