What is the gcf of 18 and 24?

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Answer 1 · 2018-03-11T22:57:41

See a solution process below:

Find the prime factors for each number as:

$18 = 2 xx 3 xx 3$

$24= 2 xx 2 xx 2 xx 3$

Now identify the common factors and determine the GCF:

$18 = color(red)(2) xx color(red)(3) xx 3$

$24 = color(red)(2) xx 2 xx 2 xx color(red)(3)$

Therefore:

$"GCF" = color(red)(2) xx color(red)(3) = 6$