aggiunge esercizio 26

lab26.py

@@ -0,0 +1,18 @@
+def is_prime(num):
+    div = []
+
+    if num is float:
+        return None
+
+    for i in range(1,num+1):
+        if num % i == 0:
+            div.append(i)
+
+    if len(div) == 2:
+        return num
+
+for i in range(1,20):
+    if is_prime(i+1):
+        print(i+1,end=" ")
+
+print()