23 x 11 = 88
88 44,2 22,2,2 11,2,2,2
88 | \ 44 2 | \ 22 2 | \ 11 2
88 8 x 11 (2x4) x 11 (2 x (2x2)) x 11 Since 2 and 11 are prime numbers, the factor tree is complete.
176 - 2 88 - 2 44 - 2 22 - 2 11 ■
88 44,2 22,2,2 11,2,2,2
88 44,2 22,2,2 11,2,2,2
23 x 11 = 88
88 44,2 22,2,2 11,2,2,2
88 | \ 44 2 | \ 22 2 | \ 11 2
88 44,2 22,2,2 11,2,2,2
88 8 x 11 (2x4) x 11 (2 x (2x2)) x 11 Since 2 and 11 are prime numbers, the factor tree is complete.
A factor tree will show you the prime factorization of 88. Comparing that prime factorization of 88 and another number will you show you the GCF between the two. You need at least two numbers to find a GCF.
88 = 8 x 11 = 2 x 2 x 2 x 11 = 23 x 11 88 44,2 22,2,2 11,2,2,2
176 - 2 88 - 2 44 - 2 22 - 2 11 ■
The highest common factor of the numbers 88 and 66 is 22.
Since 11 is a factor of 88, it is automatically the GCF of 11 and 88.