Answer:
3
Step-by-step explanation:
The least possible number is 3, because if we start checking,
1 x 5= 5 + 4= 9
2 x 5= 10 + 4= 14
3 x 5= 15 + 4=19
The result has to be at least 19 and it has to be reached by the least possible number, and as seen, it is 3.
