Ratio between sums of prime and non-prime numbers - MATLAB Cody - MATLAB Central

Problem 44861. Ratio between sums of prime and non-prime numbers

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Write a function that calculates the ratio between the sum of the prime numbers less than or equal to x, and the sum of the non-prime numbers up to the greatest prime less than or equal to x.
For example, if x = 7, then:
sum_prime = sum([2 3 5 7]) = 17
sum_non_prime = sum([1 4 6]) = 11
Therefore, the desired ratio is:
prime_ratio = sum_prime / sum_non_prime = 17 / 11
Solve

Solution Stats

39.58% Correct | 60.42% Incorrect
Last Solution submitted on Feb 01, 2025

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