Identify the odd one: 6, 10, 14, 21
Show answer & explanation
Correct answer: D
Explanation
6 = 2 × 3
10 = 2 × 5
14 = 2 × 7
All three are even numbers and divisible by 2.
But,
21 = 3 × 7
is an odd number and is not divisible by 2.
Unmatched number: 21