Question

[1] Explain why( 7×11×13+13 ) is a composite number ​

Answer 1

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Given,

=> 7×11×13+13

=13×(7×11+1)

=3×78

This number is multiple of two integers.Hence it has more than two factors.

Hence it is a composite number.

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Answer 2

Answer:

Step-by-step explanation:

7×11×13+13

13(7*11 +1)

13*78.

Hence the number is composite . It has more than two factors.