input: Write a function to determine if a number provided by the user is prime or not. If the number is prime, return 'True', otherwise return 'False'. The function should handle any integer input provided by the user.
  
  def is_prime(num):
      if num <= 1:
          return False
      for i in range(2, int(num**0.5) + 1):
          if num % i == 0:
              return False
      return True
  
  assert is_prime(17)==True
  assert is_prime(15)==False
  assert is_prime(2)==True
  assert is_prime(1)==False
  assert is_prime(29)==True
output: def is_prime(num):
      if num <= 1:
          return False
      for i in range(2, int(num**0.5) + 1):
          if num % i == 0:
              return False
      return True