Question

How many integers n with 1n150 are relatively prime to 70?

Answer 1

Answer:

the integer of k of this firm are solution referred to as totatives of n. foe example the totatives of n=9 are the six number 1,2,3,4,5,6 and 7 and 8.they are all relatively prime to 9 .but the other three number in this range 3,6, and ,9 are not because gcd(9,3) =gcd(,9,6)=3 and gcd(9,9)=9