Python 判断素数函数 - is_prime.py

# 判断一个数是否为素数
def is_prime(number):
    if number <= 1:
        return False
    for i in range(2, int(number/2)+1):
        if number % i == 0:
            return False
    return True
# 使用示例
num = 17
if is_prime(num):
    print(f'{num} is a prime number')
else:
    print(f'{num} is not a prime number')