Added code to check whether the number is prime or not

May21/looping/primenumber.py

@@ -0,0 +1,18 @@
+# This program will check whether the number is prime or not
+
+number = int(input('Enter the number: '))
+index = 2
+is_prime = True # Flag approch
+while index < number:
+    if number % index == 0:
+        # the number is divisible by index so not prime
+        # should do some thing to specify number is not prime
+        is_prime = False
+        break
+    index = index + 1
+
+if is_prime:
+    print(f"{number} is prime")
+else:
+    print(f"{number} is not prime")
+