Question:
Find the odd one out in the numbers 31, 41, 61, 71, 91, 101, 111.
Find the odd one out in the numbers 31, 41, 61, 71, 91, 101, 111.
Show Hint
Check which of the listed numbers is not a prime number.
Updated On: Jul 3, 2026
- 31
- 71
- 91
- 101
Show Solution
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The Correct Option is C
Solution and Explanation
Step 1: Check each number for primality: 31, 41, 61, 71 and 101 are all prime numbers.
Step 2: 91 = 7 x 13, which is a composite number, not prime.
Step 3: Among the given options (31, 71, 91, 101), only 91 is not prime. Answer: option 3.
Step 2: 91 = 7 x 13, which is a composite number, not prime.
Step 3: Among the given options (31, 71, 91, 101), only 91 is not prime. Answer: option 3.
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