The opposite of a common factor is a prime factor. Common factors are numbers that evenly divide two or more integers, while prime factors are numbers that are only divisible by 1 and themselves. The prime factors of a number are the building blocks that make up that number, and they cannot be further broken down into smaller factors.
Chat with our AI personalities
an uncommon factor which is any of the other factors that is not a common factor
In one sense, the opposite of the GCF could be the least common factor, but the least common factor of any set of positive integers is 1, so it's not very interesting.
A non-factor.
The least common factor is always one (1), regardless of what the greatest common factor is.
Answer: None, it is impossible. No single number has a greatest common factor. A "common factor" is a factor that two or more numbers have in common. The "greatest common factor" is the largest factor that two or more numbers have in common.
There cannot be a greatest common factor if there are not at least two numbers to compare. The greatest common factor is the largest factor that all the numbers have in common - the largest factor that they all share.