• lcm &rest integers → least-common-multiple

• 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

None.

None.

Should signal type-error if any argument is not an integer.

• Function GCD

None.

\issue{LCM-NO-ARGUMENTS:1}