input: def primeCheck(num: int) -> bool:
      """Checks if a given number is prime.
  
      >>> primeCheck(2)
      True
      >>> primeCheck(4)
      False
      >>> primeCheck(29)
      True
      >>> primeCheck(1)
      False
      >>> primeCheck(0)
      False
      """
      if num > 1:
          for i in range(2, num):
              if (num % i) == 0:
                  return False
      else:
          return False
      return True
output:     if num > 1:
          for i in range(2, int(num**0.5) + 1):
              if (num % i) == 0:
                  return False
      else:
          return False
      return True