Question : Directions: In the following question, find the odd number pair from the given alternatives.
Option 1: 13
Option 2: 17
Option 3: 29
Option 4: 87
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Correct Answer: 87
Solution :
Let's check the options –
First option:
13→The factors of 13 are 1 and 13. So, 13 is a prime number.
Second option:
17→The factors of 17 are 1 and 17. So, 17 is a prime number.
Third option:
29→The factors of 29 are 1 and 29. So, 29 is a prime number.
Fourth option:
87→The factors of 87 are 1, 3, 29 and 87. So, 87 is not a prime number.
Hence, the fourth option is correct.
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