Same issue here as in your third problem. Please check the absolute value of the differences of the computed values with the correct ones. Otherwise, more silly answers (again, like this one :-) will slip through!
Thanks for the catch. I've updated the test suite to check against upper and lower bounds of each answer.
Project Euler: Problem 3, Largest prime factor
Make a random, non-repeating vector.
Rotate a Matrix by 90 degrees
Multiples of a Number in a Given Range
Generate a NaN...on purpose
Mechanical Advantage of a Gear Train
Temperature Conversion Utility
Combined Ages 2 - Symmetric, n ≥ 3
Lights Out 13 - 5x5, three stages, x moves
Lights Out 1 - 5x5, 3 moves
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