We'd like to use analytics cookies to understand which symbols people look up, so we know what to research next. They are not used for advertising and we set none of them unless you say yes. What we store.
Two numbers in brackets, or the letters gcd, naming their largest shared divisor.
Also known as: Highest common factor, GCD, HCF, Greatest common factor
The greatest common divisor is written either with the abbreviation gcd or, in number-theory texts, as a plain pair of numbers in round brackets. The bracketed form collides with the notation for an ordered pair and for an open interval, which is why the abbreviation is safer.
Denotes the largest positive integer dividing both arguments exactly.
Contexts: Mathematics
Is written in number theory as a bare pair in round brackets, which collides with the notation for an ordered pair and for an open interval.
Contexts: Mathematics
Is abbreviated hcf, for highest common factor, in British school mathematics, with the same meaning.
Contexts: Mathematics
Three lowercase letters followed by two numerals separated by a comma inside round brackets.