diff --git a/activerecord/lib/active_record/validations.rb b/activerecord/lib/active_record/validations.rb
index 0365cb592f728ffa09bb30facf7645f56556674b..e8a2a727357e922896dcdea2e1a230faa1e012ae 100644
--- a/activerecord/lib/active_record/validations.rb
+++ b/activerecord/lib/active_record/validations.rb
@@ -1,5 +1,3 @@
-require 'active_support/core_ext/integer/even_odd'
-
 module ActiveRecord
   # Raised by <tt>save!</tt> and <tt>create!</tt> when the record is invalid.  Use the
   # +record+ method to retrieve the record which did not validate.
diff --git a/activesupport/lib/active_support/core_ext/integer.rb b/activesupport/lib/active_support/core_ext/integer.rb
index 7ba018ed7f272f9227df3d3dcd6b9ee54e5cbb7b..a44a1b4c74393c8309090592676a64a9b1986c20 100644
--- a/activesupport/lib/active_support/core_ext/integer.rb
+++ b/activesupport/lib/active_support/core_ext/integer.rb
@@ -1,3 +1,3 @@
-require 'active_support/core_ext/integer/even_odd'
+require 'active_support/core_ext/integer/multiple'
 require 'active_support/core_ext/integer/inflections'
 require 'active_support/core_ext/integer/time'
diff --git a/activesupport/lib/active_support/core_ext/integer/even_odd.rb b/activesupport/lib/active_support/core_ext/integer/even_odd.rb
deleted file mode 100644
index 8f9a97b44c2a0ee4d9e0ae01071e25ee76ac7ca1..0000000000000000000000000000000000000000
--- a/activesupport/lib/active_support/core_ext/integer/even_odd.rb
+++ /dev/null
@@ -1,16 +0,0 @@
-class Integer
-  # Check whether the integer is evenly divisible by the argument.
-  def multiple_of?(number)
-    self % number == 0
-  end
-
-  # Is the integer a multiple of 2?
-  def even?
-    multiple_of? 2
-  end unless method_defined?(:even?)
-
-  # Is the integer not a multiple of 2?
-  def odd?
-    !even?
-  end unless method_defined?(:odd?)
-end
diff --git a/activesupport/lib/active_support/core_ext/integer/multiple.rb b/activesupport/lib/active_support/core_ext/integer/multiple.rb
new file mode 100644
index 0000000000000000000000000000000000000000..40bea54c676b5bc06f735484df3e970d563d51cc
--- /dev/null
+++ b/activesupport/lib/active_support/core_ext/integer/multiple.rb
@@ -0,0 +1,6 @@
+class Integer
+  # Check whether the integer is evenly divisible by the argument.
+  def multiple_of?(number)
+    self % number == 0
+  end
+end
diff --git a/activesupport/lib/active_support/ruby/shim.rb b/activesupport/lib/active_support/ruby/shim.rb
index 1f47c04826b894273b1f42559a0291699f1d86c5..f811239077c2d3f0916185f2ac647a6400ea9e4f 100644
--- a/activesupport/lib/active_support/ruby/shim.rb
+++ b/activesupport/lib/active_support/ruby/shim.rb
@@ -4,7 +4,6 @@
 # Date        next_year, next_month
 # DateTime    to_date, to_datetime, xmlschema
 # Enumerable  group_by, each_with_object, none?
-# Integer     even?, odd?
 # Process     Process.daemon
 # REXML       security fix
 # String      ord
@@ -13,7 +12,6 @@
 require 'active_support/core_ext/date/calculations'
 require 'active_support/core_ext/date_time/conversions'
 require 'active_support/core_ext/enumerable'
-require 'active_support/core_ext/integer/even_odd'
 require 'active_support/core_ext/process/daemon'
 require 'active_support/core_ext/string/conversions'
 require 'active_support/core_ext/rexml'
diff --git a/activesupport/test/core_ext/integer_ext_test.rb b/activesupport/test/core_ext/integer_ext_test.rb
index 956ae5189dc88a6ddcd5f8786ae32fb5b48b1c0d..e1591089f5a35cbdb02c775e4e452f84f0e6b8f8 100644
--- a/activesupport/test/core_ext/integer_ext_test.rb
+++ b/activesupport/test/core_ext/integer_ext_test.rb
@@ -2,22 +2,6 @@
 require 'active_support/core_ext/integer'
 
 class IntegerExtTest < Test::Unit::TestCase
-  def test_even
-    assert [ -2, 0, 2, 4 ].all? { |i| i.even? }
-    assert ![ -1, 1, 3 ].all? { |i| i.even? }
-
-    assert 22953686867719691230002707821868552601124472329079.odd?
-    assert !22953686867719691230002707821868552601124472329079.even?
-    assert 22953686867719691230002707821868552601124472329080.even?
-    assert !22953686867719691230002707821868552601124472329080.odd?
-  end
-
-  def test_odd
-    assert ![ -2, 0, 2, 4 ].all? { |i| i.odd? }
-    assert [ -1, 1, 3 ].all? { |i| i.odd? }
-    assert 1000000000000000000000000000000000000000000000000000000001.odd?
-  end
-
   def test_multiple_of
     [ -7, 0, 7, 14 ].each { |i| assert i.multiple_of?(7) }
     [ -7, 7, 14 ].each { |i| assert ! i.multiple_of?(6) }