SOLUTION: Can someone help me on this problem? I need to find the GCF of 6, 18 and 30. Thank you.

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 Click here to see ALL problems on expressions Question 53309: Can someone help me on this problem? I need to find the GCF of 6, 18 and 30. Thank you.Answer by funmath(2925)   (Show Source): You can put this solution on YOUR website!6 is the biggest number that divides evenly into all three numbers. 6/6=1 18/6=3 30/6=5 Another way to do it is to find the one number that is a factor in all three numbers: 6=6*1 18=6*3 30=6*5 Another way is to find the prime factors using a factor tree: 6=2*3 18=2*3*3 30=2*3*5 They all have 2*3 in common. 2*3=6