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Primality test for integers in python.
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| /** | |
| * Created by pgebert on 14/01/22. | |
| * | |
| * Test whether a number is prime or not in python. | |
| */ | |
| def is_prime(n: int) -> bool: | |
| """Primality test for integers.""" | |
| 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 | |
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