Nice test cases!
With a more robust Test Suite many/most of the submissions would fail for ignoring the Problem Statement instruction that primes must be less than n. Please add test cases in which the input x (or "n") is itself a prime.
How to find the position of an element in a vector without using the find function
Try 1.5.4: Celsius to Fahrenheit
find the maximum element of the matrix
07 - Common functions and indexing 4
Sum of series V
Create a constant offset.
Energy of an object
Display negative numbers
kmph to mph converter
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