Question

explain why 7 into 11 into 13 +13 is composite number
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Answer 1

Answer:

Step-by-step explanation:

7 x 11 x 13 + 13

= 13 ( 7 x 11 + 1 )

Since, 13 is a common factor.

So, 7 x 11 x 13 + 13 is a composite number.