Question

find composite number of the following question 13 15 17​

Answer 1

Factors of 13=1,13

Factors of 15=1,3,5,15

Factors of 17=1,17

Here 13 and 17 has 2 factors and 15 has 4 factors.

So, 15 is the composite number in the following because a composite number have more than three factors