The question doesn't mention anything about 'inclusive' or 'exclusive'. If I include 43 in my count, there are 4 prime numbers between 43 and 60. If I exclude 43, there are 3 prime numbers. What is the most appropriate way to approach this kind of math problem?
2026-03-25 14:23:48.1774448628
How many prime numbers are there from 43 to 60?
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Define ''the amount of primes numbers below $n$'' as $\pi(n)$, the prime-counting function. Then the question ''How many prime numbers are there from 43 to 60?'' can be ''translated'' as $$ \pi(60) - \pi(43), $$ which is equal to $3$.