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Question: List all the prime numbers, which are greater than 20 and less than 30.


A ) 23 and 29
B ) 23 and 27
C ) 27 and 29
D ) 23, 27, 29

Steps to derive

1 A number that has only two factors, one and itself is called a prime number.

2 List of prime numbers greater than 20 and less than 30 are 23 and 29.



Hence the right answer is Option A

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