Question

Which number is composite between 15,17,19, and 23

Answer 1

It's 15

Step-by-step explanation:

Composite numbers have more than 2 factors

1 x 15 and 3 x 5 are 15

Answer 2

Answer: 15

Step-by-step explanation:

Only 15 is divisible by a number besides 1 and itself. Those numbers are 3 and 5, as 3•5 is 15.