is_this_a_prime_number2.py

def sqrt(number):
    return int(number ** 0.5)

def prime_number(number):
    for i in range(2, sqrt(number)):
        if number % i == 0:
            print(number, 'is not a prime number')
            break
    else:
        print(number, 'is a prime number')

print('you can terminate the operation by entering 2')

while True:
    number = int(input('Enter a number:'))

    if number > 2:
        prime_number(number)

    elif number <= 1:
        print('Enter a number greater than 1')

    elif number == 2:
        break