Question

find the greatest common factor (gcf) of 3 and 9. which numbers are factors of 3? choose all that apply. 1 2 3 4 5 6 7 8 9 10

Explanation:

Step1: Find factors of 3

The factors of a number are the numbers that divide it without leaving a remainder. For 3, we check which numbers from 1 to 3 (since 3 is a small number) divide it.

• \( 3 \div 1 = 3 \) (remainder 0), so 1 is a factor.
• \( 3 \div 2 = 1.5 \) (not an integer, so 2 is not a factor).
• \( 3 \div 3 = 1 \) (remainder 0), so 3 is a factor.
• Numbers greater than 3 (4,5,6,7,8,9,10) will give a quotient less than 1 or a non - integer quotient when dividing 3, so they are not factors.

Step2: Identify the factors from the list

From the given list (1,2,3,4,5,6,7,8,9,10), the numbers that are factors of 3 are 1 and 3.

Answer:

1, 3