What is the smallest number that cannot be obtained with one throw of a dart?

Question

Below shows the first 5 positive integers formed by using the four mathematical operators (+ - * /) only on the digit 4 four times.

1 = 44 / 44
2 = 4*4 / (4+4)
3 = (4+4+4) / 4
4 = 4 + (4*(4-4))
5 = (4+(4*4)) / 4

What is the smallest positive integer that cannot be represented using these conditions?

Answer 1

23 is the lowest unobtainable score with one dart.It can be achieved using 2 darts. All numbers up to that can be achieved using one dart. The next unobtainable one is 29 followed by 31,37,41,43,44,46,47,49,52,53,55,56,58 and 59