You need at least two numbers to find something in common. If that's 12 and 15, the answer is 3.
Chat with our AI personalities
The Greatest Common Factor (GCF) is: 1
The Greatest Common Factor (GCF) is: 6
the greatest common factor of 55 and 75 is 5
The Greatest Common Factor of 14 and 21 is 7.
the greatest common factor of 16 and 54 is 2