[REPO REFACTOR]: changed to a better git repository structure with branches

util/numbers.py

@@ -0,0 +1,10 @@
+def is_even(n: int) -> bool:
+    return n % 2 == 0
+
+def is_prime(n: int) -> bool:
+    if n <= 1:
+        return False
+    for i in range(2, int(n**0.5) + 1):
+        if n % i == 0:
+            return False
+    return True