integer—an integer.
greatest-common-denominator—a non-negative integer.
Returns the greatest common divisor of integers.
If only one integer is supplied, its absolute value is returned.
If no integers are given, gcd
returns 0
,
which is an identity for this operation.
(gcd) → 0 (gcd 60 42) → 6 (gcd 3333 -33 101) → 1 (gcd 3333 -33 1002001) → 11 (gcd 91 -49) → 7 (gcd 63 -42 35) → 7 (gcd 5) → 5 (gcd -4) → 4
Should signal an error of type type-error
if integer is not
an integer.
For three or more arguments,
(gcd b c ... z) ≡ (gcd (gcd a b) c ... z)