Three of the following four numbers are alike in a certain way and one is different. Pick the number that is different from the rest.
Show answer & explanation
Correct answer: C
Explanation
The correct answer is option 3 i.e. 171
| Understanding |
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Here, 193, 191, and 173 are prime numbers. But, 171 = 19 × 9. Thus, 171 is a composite number. Hence, 171 is the odd one. |