diff --git a/src/algorithms/math/factorial/__test__/factorial.test.js b/src/algorithms/math/factorial/__test__/factorial.test.js
index bf6aa0ecbd..cee9e6b5f1 100644
--- a/src/algorithms/math/factorial/__test__/factorial.test.js
+++ b/src/algorithms/math/factorial/__test__/factorial.test.js
@@ -8,4 +8,8 @@ describe('factorial', () => {
     expect(factorial(8)).toBe(40320);
     expect(factorial(10)).toBe(3628800);
   });
+
+  it('factorial of negative should throw', () => {
+    expect(() => factorial(-1)).toThrow();
+  });
 });
diff --git a/src/algorithms/math/factorial/factorial.js b/src/algorithms/math/factorial/factorial.js
index 6c717d051f..9730d4f4f5 100644
--- a/src/algorithms/math/factorial/factorial.js
+++ b/src/algorithms/math/factorial/factorial.js
@@ -3,6 +3,9 @@
  * @return {number}
  */
 export default function factorial(number) {
+  if (number < 0) {
+    throw new RangeError('Number must be greater than 0');
+  }
   let result = 1;
 
   for (let i = 2; i <= number; i += 1) {