integer—an integer.
least-common-multiple—a non-negative integer.
lcm
returns the least common multiple of the integers.
If no integer is supplied, the integer 1
is returned.
If only one integer is supplied, the absolute value of that integer is returned.
For two arguments that are not both zero,
(lcm a b) ≡ (/ (abs (* a b)) (gcd a b))
If one or both arguments are zero,
(lcm a 0) ≡ (lcm 0 a) ≡ 0
For three or more arguments,
(lcm a b c ... z) ≡ (lcm (lcm a b) c ... z)
(lcm 10) → 10 (lcm 25 30) → 150 (lcm -24 18 10) → 360 (lcm 14 35) → 70 (lcm 0 5) → 0 (lcm 1 2 3 4 5 6) → 60
Should signal type-error
if any argument is not an integer.