Answers for "python prime number is in python"

is prime python

import math
def isPrimeNumber(n):
    if (n < 2):
        return False;
    sq = int(math.sqrt(n))
    for i in range(2, sq + 1):
        if (n % i == 0):
            return False
    return True

prime number in python

a=int(input('print number:'))
for i in range(2,a):
    if a%i !=0:
        continue
    else:
        print("Its not a prime number")
        break # here break is exicuted then it means else would not be exicuted.
else:
    print("Its a prime number")

how to see if a number is prime in python

def is_prime(n: int) -> bool:
    """Primality test using 6k+-1 optimization."""
    if n <= 3:
        return n > 1
    if n % 2 == 0 or n % 3 == 0:
        return False
    i = 5
    while i ** 2 <= n:
        if n % i == 0 or n % (i + 2) == 0:
            return False
        i += 6
    return True