Find the number that is unlike the others.
Show answer & explanation
Correct answer: D
Explanation
1442 → Sum of digits = 1 + 4 + 4 + 2 = 11 (not divisible by 3)
1672 → Sum = 1 + 6 + 7 + 2 = 16 (not divisible by 3)
189146 → Sum = 1 + 8 + 9 + 1 + 4 + 6 = 29 (not divisible by 3)
2115 → Sum = 2 + 1 + 1 + 5 = 9 (divisible by 3)
Only 2115 is exactly divisible by 3.
Therefore, the number that differs from the others is: 2115