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# Python Program to Check Prime Number

# Function to check prime number
def is_prime(n):
    # If the number is less than 2, it is not prime
    if n < 2:
        return False
    # If the number is 2, it is prime
    elif n == 2:
        return True
    else:
        for i in range(2, int(n**(0.5))+1):
            if n % i == 0:
                return False
        return True

# Taking input from the user
num = int(input("Enter a number: "))

# Checking if the number is prime or not
if is_prime(num):
    print(num, "is a prime number.")
else:
    print(num, "is not a prime number.")