18 and 27

1x18

2x9

3x6

Factors of 30=( 1,2,3,6,9,18)

1 x 27

3 x 9

Factors of 60=( 1,3,9,27)

Common Factors of 18 and 27 =( 1,3,9)

The greatest Common Factors of 18 and 27 =9

Factor your lowest number first, which means finds numbers that evenly divide into that number.

18 divides by 1, 2, 3, 6, 9, and 18. The number 27 divides by 1, 3, 9, and 27. The greatest common factor in both numbers is 9.

18 and 27

Factors of 18={ 1,2,3,6,9,18}

Factors of 27={ 1,3,9,27}

Common Factors of 18 and 27 ={ 1,3,9}

The greatest Common Factors of 18 and 27 =9

Factors of 18 = 2 *3 * 3

factors of 27 = 3 * 3 * 3

the common factors in both numbers are 3 & 3

therefore , the greatest common factor is 3 *3= 9

gcf = 9

18 and 27

3 18 27

3 6 9

2 3

since 3 and 3 are numbers that divides both 18 and 27 without leaving a remainder.

Greatest common factor = 3*3= 9