Greatest Common Factor Calculator
A factor of a number is a whole number that divides evenly into the
number evenly without a remainder. Factoring a number means finding its
factors. A prime number is a number that has no factors except 1 and
itself. A prime factor is a number that divides evenly into the number
and is a prime number.
The greatest common factor (GCF) of two or more numbers is the biggest
factor that they have in common. In other words, the highest number that divides
evenly into all the numbers. Factoring numbers is neccessary when performing
mathematical operations using fractions.
To find the greatest common factor of a group of two or three numbers, enter
the numbers into the boxes below. If you want to find the GCF of only two numbers,
leave the third box empty.
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