Unusual use of π \pi

Number Theory Level 3

This is a problem I encountered sometime when I was in high school.

Pick any two integers x 1 x_1 and x 2 x_2 at random. What is the probability that they will be coprime? (They have no common factors.)


The answer is 0.6079.

Max Yuen by Max Yuen , 42, USA

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1 solution

Mr. India
Apr 28, 2019

This problem is same so see it's solution. You already know the answer now :p

1 Helpful 0 Interesting 0 Brilliant 0 Confused

Thank you Mr. India! I see you have the coprime with 3 integers problem. I'll post the coprime with 4.

Max Yuen - 2 years, 1 month ago

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