Concept:One number is odd, while the others are even.
Explanation:Check each number for divisibility by 2.
579 is not divisible by 2, so it is odd.
468 is divisible by 2, so it is even.
234 is divisible by 2, so it is even.
936 is divisible by 2, so it is even.
The odd number is the outlier.
Answer:Option 1 (579)