Regular Expression That Checks If a Number Is Prime (2016)
iluxonchik.github.ioA python implementation of is_prime(n):
return re.compile(r'^1?$|^(11+)\1+$').match('1' * n) is NoneA python implementation of is_prime(n):
return re.compile(r'^1?$|^(11+)\1+$').match('1' * n) is None