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Question

(7×11×13+13) is a/an

A
Composite number
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B
Prime number
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C
Irrational number
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D
Imaginary number.
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Solution

The correct option is A Composite number
(7×11×13+13)=13{(7×11)+1}=13×78=1014
Since, 1014 is divided by 13,78 which is other than 1 and the number itself, so it is a composite number.

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