Question

explain why 5 into 7 into 9 + 7 is a composite number

Answer 1

322 is a composite number because it have more than 2 factors

Answer 2

When we solve it as

5* 7*9+7= 5*7*9+7
35*9+7= 322
When we factories it we see that it has more than one factor. So, 322 is a composite number.

Thank You.