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Question

The number 7 x 11 x 13 + 13 is :


A

Negative Integer

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B

Composite Number

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C

Irrational Number

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D

Prime Number

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Solution

The correct option is B

Composite Number


7 x 11 x 13+13
= 13(7 x 11 + 1)
= 13(78)
Now this number has more than two factors.
Therefore it is a composite number.


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