1 -> 0
2 = 2^1 ->1
3 = 2^0 3^1 -> 10
5=2^0 3^0 5^1->100
4 = 2^2 -> 2
7 = 2^0 3^0 5^0 7^1 -> 1000
9 = 2^0 3^2 -> 20
...
.1 ...................................0
.2…………………………………..1
.3 ..................................10
.4 .................................100
.5 ...................................2
.6………………………………..1000
.7 ..................................20
.8 ...............................10000
.9 ..............................100000
10 .............................1000000
11 ...................................三
12 ............................10000000
13 ...........................100000000
14 .................................200
15 ................................1010
16 ..........................1000000000
17 .........................10000000000
18 ........................100000000000
19 .......................1000000000000
20 ......................10000000000000
21 .....................100000000000000
22 ....................1000000000000000
23 ...................................4
24 ...................10000000000000000
...
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