diff --git a/base/intfuncs.jl b/base/intfuncs.jl
index 13a5007e4c74b..dc81f2bd3e489 100644
--- a/base/intfuncs.jl
+++ b/base/intfuncs.jl
@@ -97,6 +97,9 @@ end
 Least common (positive) multiple (or zero if any argument is zero).
 The arguments may be integer and rational numbers.
 
+``a`` is a multiple of ``b`` if there exists an integer ``m`` such
+that ``a=mb``.
+
 !!! compat "Julia 1.4"
     Rational arguments require Julia 1.4 or later.