输入合数时素数或合数计算器出错

Question

num = int(input("Enter A NUMBER: "))

def primeornot():
  for i in range(2, num//2):
    if (num % i) == 0:
      print(num, "is not a prime number")
    elif (num % i) != 0:
      print("Its prime!")
    
primeornot()

尝试输入一个合数，比如55，它会打印很多结果。会说不是素数，然后说是素数

Answer 1

如果满足if条件则使用break，如果是素数则block

num = int(input("Enter A NUMBER: "))

def primeornot():
  for i in range(2, num//2):
    if (num % i) == 0:
      print(num, "is not a prime number")
      break
  else:
      print("Its prime!")
    
primeornot()

输入合数时素数或合数计算器出错

Prime or composite calculator errors when I enter a composite number

python

primes