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Question : Directions: In the following question, find the odd number pair from the given alternatives.

Option 1: 11

Option 2: 17

Option 3: 19

Option 4: 21


Team Careers360 20th Jan, 2024
Answer (1)
Team Careers360 22nd Jan, 2024

Correct Answer: 21


Solution : Let's check the options –
First option: 11→ The factors of 11 are 1 and 13. So, 11 is a prime number.
Second option: 17→ The factors of 17 are 1 and 17. So, 17 is a prime number.
Third option: 19→ The factors of 19 are 1 and 19. So, 19 is a prime number.
Fourth option: 21→ The factors of 21 are 1, 3, 7 and 21. So, 21 is not a prime number.

Hence, the f ourth option is correct.

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