What is the Greatest Common Factor GCF. In mathematics GCF is the abbreviation for the Greatest Common Factor which represents the largest positive integer that divides without a remainder two or more given numbers. The greatest number that is a factor of two or more other numbers.
It is the biggest number that divides exactly into two or more numbers.
First well find the GCF of two numbers. Greatest common divisor GCD GCF GCD of two or more integers when at least one of them is not zero is the largest positive integer that is a divisor of both or all of the numbers. It is the biggest number that divides exactly into two or more numbers. And that kind of makes sense because a prime number is something that only has 1 and itself as a factor.