Which of the following is a prime number?
(a) 143
(b) 131
(c) 147
(d) 161

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Solution

The correct option is (b).
To find a prime number between 100 and 200, we have to check whether the given number is divisible by any prime number less than 15. If yes, it is not prime, otherwise it is.
By examining, we find that 131 is a prime number.

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