Question

Explain why 7×11×13×13 is a composit number

Answer 1

7×11×13+13 may be written as, i.e. 13 * (78). So other than 1 and the number itself, 13 and 78 are also the factors of the number. ... So, other than the number and 1, it have 5 and 1009 as it's factors too. So it is also a composite number

Answer 2

Composite number :- the number having more than two factor is called composite number .

Now ,

7 × 11 × 13 × 13

13 (7 × 11 ×1 )

Now , since 13 having factor more than two in the given number so it is a composite number .