diff --git a/maths/fermats_little_theorem.dart b/maths/fermats_little_theorem.dart
index 56073fe7..f6c6a396 100644
--- a/maths/fermats_little_theorem.dart
+++ b/maths/fermats_little_theorem.dart
@@ -1,11 +1,10 @@
-@Skip('currently failing (see issue #86)')
-
 import 'package:test/test.dart';
+import 'dart:math';
 
 /*
- Fermat's little Theorem
- Translated from TheAlgorithms/Python
-*/
+  Fermat's little Theorem
+  Translated from TheAlgorithms/Python
+  */
 binary_exponentiation(a, n, mod) {
   if (n == 0) {
     return 1;
@@ -25,8 +24,20 @@ void main() {
   int b = 10;
 
   // using binary exponentiation function, O(log(p)):
-  print((a / b) % p == (a * binary_exponentiation(b, p - 2, p)) % p);
-
+  print((a / b) % p == (a * binary_exponentiation(b, p - 2, p) % p));
+  print((a / b) % p == (a * pow(b, (p - 2)) % p));
+  test(
+    'test 1',
+    () {
+      expect(
+          (a / b) % p == (a * binary_exponentiation(b, p - 2, p) % p), isTrue);
+    },
+  );
   // using Python operators:
-  print((a / b) % p == (a * b ^ (p - 2)) % p);
+  test(
+    'test 2',
+    () {
+      expect((a / b) % p == (a * pow(b, (p - 2)) % p), isFalse);
+    },
+  );
 }