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

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

6 = ( (4 + 4) / 4 ) + 4 = 6
7 = 4 - (4 / 4) + 4 = 7
8 = 4 * 4 - (4 + 4) = 8
9 = 4 + 4 + ( 4 / 4) = 9
10 = (44-4)/4 = 10

Ans :- 11

Answer 2

ANSWER:11
11 is the smallest positive integer that cannot be represented using those conditions