std::experimental::lcm
From cppreference.com
< cpp  experimental
Defined in header <experimental/numeric>


template< class M, class N> constexpr std::common_type_t<M, N> lcm(M m, N n); 
(library fundamentals TS v2)  
Computes the least common multiple of the integers m
and n
.
Contents 
[edit] Parameters
m, n    integer values 
[edit] Return value
If either m
or n
is zero, returns zero. Otherwise, return the least common multiple of m
and n
.
[edit] Remarks
If either M
or N
is not an integer type, or if either is (possibly cvqualified) bool, the program is illformed.
The behavior is undefined if m
, n
or the least common multiple of m
and n
is not representable as a value of type std::common_type_t<M,N>
.
[edit] Exceptions
Throws no exceptions.
[edit] See also
constexpr function template returning the greatest common divisor of two integers (function template) 