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What is the greatest common factor of $4$ , $18$ , and $8$ ? $\newline$ ____

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Greatest common factor of three or four numbers

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Q. What is the greatest common factor of

4

,

18

, and

8

?

\newline

____

List Factors of $\newline$ $4$ : List the factors of $\newline$ $4$ . $\newline$ Calculation: $\newline$ $1 \times 4 = 4$ , $\newline$ $2 \times 2 = 4$ $\newline$ Factors of $\newline$ $4$ : $\newline$ $1, 2, 4$
List Factors of $18$ : List the factors of $18$ . $\newline$ Calculation: $1 \times 18 = 18$ , $2 \times 9 = 18$ , $3 \times 6 = 18$ $\newline$ Factors of $18$ : $1$ , $2$ , $3$ , $6$ , $9$ , $18$
List Factors of $8$ : List the factors of $8$ . $\newline$ Calculation: $1 \times 8 = 8$ , $2 \times 4 = 8$ $\newline$ Factors of $8$ : $1$ , $2$ , $4$ , $8$
Identify Common Factors: Identify the common factors of $4$ , $18$ , and $8$ . $\newline$ Common factors: $1$ , $2$
Find Greatest Common Factor: Find the greatest common factor (GCF). The common factors are $1$ and $2$ ; $2$ is the greatest. GCF of $4$ , $18$ , and $8$ : $2$

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