Question

list all of the factors of 6 from least to greatest.
1, 2, 3, 6
list all of the factors of 15 from least to greatest.
1, ?, ?, 15

Explanation:

Step1: Recall factor definition

A factor of a number \( n \) is an integer that divides \( n \) without leaving a remainder.

Step2: Find factors of 15

Start with 1: \( 15\div1 = 15 \), so 1 is a factor.
Next, check 2: \( 15\div2 = 7.5 \) (not an integer), so 2 is not a factor.
Check 3: \( 15\div3 = 5 \) (integer), so 3 is a factor.
Check 4: \( 15\div4 = 3.75 \) (not an integer), so 4 is not a factor.
Check 5: \( 15\div5 = 3 \) (integer), so 5 is a factor.
Check 15: \( 15\div15 = 1 \) (integer), so 15 is a factor.
Order the factors from least to greatest: 1, 3, 5, 15.

Answer:

1, 3, 5, 15 (the missing numbers are 3 and 5)