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Q.

Is the following statement true or false?
91 is a prime number.
 


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a

True

b

False 

answer is B.

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Detailed Solution

Given is the statement that 91 is a prime number.
We can prime factorize 91,
7 91 13 13 1  
Then,
91=7×13   Also,
91=1×91  
There are 4 factors of 91, thus 91 is not a prime number.

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Is the following statement true or false?91 is a prime number.