Multiply 9 by two different numbers (9 x a, and 9 x b). Make the two numbers, a and b, relatively prime. For example, one of them can be 1; or just choose two different prime numbers.
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It is: 12
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.
That's the greatest common factor, or GCF.
The greatest common factor is a number that divides evenly into two or more numbers. It is also called the highest common factor or greatest common divisor.
The greatest common factor (GCF) refers to a factor that is COMMON to two or more numbers. You have only one number in the question! The greatest factor of any number is itself.