5. Check if a given number is a Prime Number or not

 num = int(input("Enter a number: "))

# If number is greater than 1

if num > 1:

# Check if factor exist

for i in range(2,num):

if (num % i) == 0:

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

break

else:

print(num,"is a prime number")

# Else if the input number is less than or equal to 1

else:

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