Python Tutorial
A prime number is a number which divides only by 1 or number itself.
Number is a prime number or not, we need to divide it successively by all numbers from 2 to one less than that number. if remainder value for any of these division is zero then that number is not a prime number.
This python program is used to identify whether a number is prime number or not.
#!/usr/bin/python def check_prime_number(num): index = 2; while (index <= num-1): if (num % index == 0): return False; index += 1; if (index == num ): return True; return False; if __name__ == '__main__': num = int(input("Enter number: ")); is_prime_number = check_prime_number(num); if is_prime_number: print("%d is a prime number!" % num); else: print("%d is not a prime number!" % num);Output:
$ python prime_number.py Enter number: 32 32 is not a prime number! $ python prime_number.py Enter number: 33 33 is not a prime number! $ python prime_number.py Enter number: 5 5 is a prime number!
Python Tutorial
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