Question

use the drop-down menus to complete the sentence below.
15 is a number and a of 3.

Explanation:

Step1: Analyze the first blank (type of number)

15 is a composite number because it has factors other than 1 and itself (1, 3, 5, 15). It's not prime (prime numbers have only 1 and themselves as factors). Also, 15 is an integer, but more specifically, for the first blank, "composite" fits (or sometimes "positive", but composite is more descriptive here).

Step2: Analyze the second blank (relationship with 3)

To find the relationship between 15 and 3, we check if 3 divides 15. Since \(15\div3 = 5\) with no remainder, 15 is a multiple of 3. So the second blank is "multiple".

Answer:

15 is a \(\boldsymbol{\text{composite}}\) number and a \(\boldsymbol{\text{multiple}}\) of 3.