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std::lcm

From cppreference.com
< cpp‎ | numeric
Defined in header <numeric>
template< class M, class N>
constexpr std::common_type_t<M, N> lcm(M m, N n);
(since C++17)

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 cv-qualified) bool, the program is ill-formed.

The behavior is undefined if

  • |m| is not representable as a value of type M; or
  • |n| is not representable as a value of type 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

(C++17)
constexpr function template returning the greatest common divisor of two integers
(function template) [edit]