Question

explain why 7*11*13+13 is a composite number​

Answer 1

7 x 11 x 13 + 13

= 13 [(7 x 11) + 1]

This number contains 13 in its factorization. So, it is divisible by 13.

As it has factors other than 1 and the number itself, it is a composite number.

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Answer 2

Answer:

Step-by-step explanation:

7*11*13+13

=77*13+13

=1001+13

=1014

1014 has many multiples it is divisible by 2,3 etc along with itself and 1 so it is a composite number