The GCF is 6.
The GCF of 12, 15, 18, and 30 is 3.
The GCF of 12, 18, 24, and 30 is 6.
There's no work. Since 3 is a factor of all three numbers, it is automatically the GCF.
Since 10 is a factor of 30, it is automatically the GCF.
The GCF is 6.
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The GCF of 18 and 30 is 6
The GCF is 6.
It's difficult to determine if you want that to be one set or five. Taken as a whole, the GCF is 1. Individually... The GCF of 25 and 75 is 25. The GCF of 18 and 30 is 2. The GCF of 4 and 10 is 2. The GCF of 12 and 17 is 1. The GCF of 30 and 96 is 6.
You need at least two numbers to find a GCF. If that's 12, 18 and 30, the GCF is 6.
The GCF is 3.
The GCF is 6.