Find the highest common factor.
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To find the common factor when factorising, look for any common factors that can be divided evenly from all the terms in the expression. Divide each term by this common factor, and then factorise the resulting expression further if possible. This will help simplify the expression and make it easier to work with.
The least common factor of any set of integers is 1.
Solve the equation - by whatever means available to you: factorising, graphical, numerical approximations, etc.
There cannot be a greatest common factor (GCF) of just one number. To be common there need to be at least two numbers. If you find all the factors of two or more numbers, and you find some factors are the same ("common"), then the largest of those common factors is the Greatest Common Factor.
You write 8 over 100: 8/100. To simplify, look for a common factor between the numerator and the denominator. If you find any, divide numerator and denominator by the common factor. Repeat, until you find no more common factors.You write 8 over 100: 8/100. To simplify, look for a common factor between the numerator and the denominator. If you find any, divide numerator and denominator by the common factor. Repeat, until you find no more common factors.You write 8 over 100: 8/100. To simplify, look for a common factor between the numerator and the denominator. If you find any, divide numerator and denominator by the common factor. Repeat, until you find no more common factors.You write 8 over 100: 8/100. To simplify, look for a common factor between the numerator and the denominator. If you find any, divide numerator and denominator by the common factor. Repeat, until you find no more common factors.
You need at least two numbers to find a GCF.