81 | 3 (81 : 3 = 27)
27 | 3 (27 : 3 = 9)
9 | 3 (9 : 3 = 3) 81 = 3х3х3х3
3 | 3 (3 : 3 = 1)
1 |
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125 |5 (125 : 5 = 25)
25 |5 (25 : 5 = 5)
5 |5 (5 : 5 = 1) 125 = 5х5х5
1 |