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Problem #25

Butter's Prime Floor

Let there be functions f(N) = no. of primes x<=N and g(N) = \int_{2}^{N} \frac{dx}{ln(x)}

Find the value of \left \lfloor {g(10^{22})-f(10^{22})} \right \rfloor.

Contributed by Nitish Sharma

Solved by 148 users

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