How to check whether number is prime number or not

Prime Number:
Any number divisible by 1 and itself that number is called prime number.

Example:

num = int(input("enter number: "))
if num > 1:
   for i in range(2,num):
       if (num % i) == 0:
           print(num,"is not a prime number")
           print(i,"times",num//i,"is",num)
           break
   else:
       print(num,"is a prime number")
       

else:
   print(num,"is not a prime number")


Output:

enter number: 5
5 is a prime number

Output:

enter number: 12
12 is not a prime number
2 times 6 is 12

Output:

enter number: 15
15 is not a prime number
3 times 5 is 15