The factors of 18 are: 1, 2, 3, 6, 9, & 18
The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, & 30
The GCF is 6
The LCF (AKA Lowest Common Factor) is 1 & 2
1, 2, 3, & 6 are all the Common factors.
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The GCF of 18 and 30 is 6
The GCF is 6.
The GCF is 3.
The GCF is 6.
The greatest common factor of 18, 30 and 36 is 6