Question

30 8 /2
15 4 /2
15 2 /2
15 0/3
5 0/5
0

2*2*2*3*5 = 120

Answer 1

308 ]2
154 ]2
  77 ]7
  11 ]11      = 2²  * 7 * 11 =  4 * 7* 11 = 308