Answers

2015-09-05T11:20:46+08:00
First, lets list all the factors.
18 = 1 x 18, 2 x 9,  3 x 6
24 = 1 x 24, 2 x 12, 3 x 8, 4 x 6, 

Common Factors: 1, 2, 3, and 6.
Greatest Common Factor: 6
1 5 1
2015-09-05T21:12:13+08:00
The greatedt common factor of 18 and 24 is 6
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