input: Write a function to check if a given number is prime. The function should return True if the number is prime, otherwise return False. If the number is less than or equal to 1, the function should return False.
  
  def primeCheck(num):
   if num <= 1:
    return False
   for i in range(2, num):
    if (num % i) == 0:
     return False
   return True
  
  assert primeCheck(7)==True
  assert primeCheck(29)==True
  assert primeCheck(1)==False
  assert primeCheck(15)==False
  assert primeCheck(0)==False
output: def primeCheck(num):
   if num <= 1:
    return False
   for i in range(2, int(num**0.5) + 1):
    if (num % i) == 0:
     return False
   return True