Meaning & use
greatest common factor
The largest number that divides evenly into two or more given numbers.
See it in a sentence
The greatest common factor of twelve and eighteen is six.
Finding the greatest common factor helps simplify fractions to their lowest terms.
A note on using this word
Abbreviated GCF in the US and often called the highest common factor (HCF) in British English.
Words with a similar meaning
highest common factor
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