unconnect
diff --git a/‎maths/number_of_digits.py‎
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+def num_digits(n: int) -> int:
+    """
+    Find the number of digits in a number.
+
+    >>> num_digits(12345)
+    5
+    >>> num_digits(123)
+    3
+    """
+    digits = 0
+    while n > 0:
+        n = n // 10
+        digits += 1
+    return digits
+
+
+if __name__ == "__main__":
+    print(num_digits(12345))   # ===> 5