diff --git a/main.py b/main.py
index 44159b3..22805d9 100644
--- a/main.py
+++ b/main.py
@@ -1 +1,23 @@
-print("Hello world")
+def is_prime(n):
+    for i in range(2, n - 1):
+        if n % i == 0:
+            return False
+    return True
+
+
+def prime_factors(n: int) -> list:
+    x = n
+    c = 2
+    result = []
+    while x > 1:
+
+        if x % c == 0:
+            result.append(c)
+            x //= c
+        else:
+            c += 1
+
+    print(result)
+
+
+prime_factors(1)