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Q: What is a factor tree of 88?

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88 11 and 8

23 x 11 = 88

88 44,2 22,2,2 11,2,2,2

88 | \ 44 2 | \ 22 2 | \ 11 2

176 - 2 88 - 2 44 - 2 22 - 2 11 ■

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88 11 and 8

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

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 greatest common factor of 22 and 88 is 22Since 22 is a factor of 88, it is automatically the GCF.

Determine the prime factors for both numbers. 88 = 2 x 2 x 2 x 11 = 23 x 11 24 = 2 x 2 x 2 x 3 = 23 x 3 The common factor(s) for both numbers is 23 = 8 The GCF is therefore 8.

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