Merge pull request #2249 from mbaz/patch-1

Documentation for isprime(), isodd(), iseven()

doc/stdlib/base.rst

@@ -1490,6 +1490,23 @@ Integers
 
    **Example**: ``trailing_ones(3) -> 2``
 
+.. function:: isprime(x::Integer) -> Bool
+
+   Returns ``true`` if ``x`` is prime, and ``false`` otherwise.
+
+  **Example**: ``isprime(3) -> true``
+
+.. function: isodd(x::Integer) -> Bool
+
+   Returns ``true`` if ``x`` is odd (that is, not divisible by 2), and ``false`` otherwise.
+
+   **Example**: ``isodd(9) -> false``
+
+.. function: iseven(x::Integer) -> Bool
+
+   Returns ``true`` is ``x`` is even (that is, divisible by 2), and ``false`` otherwise.
+
+   **Example**: ``iseven(1) -> false``
 
 Random Numbers
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