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21
× 23
3
× 2
2
1
11
× 10
3
1
× 5
1
8
× 3
3
1
× 3
1
8
3
1
× 3
1
7
3
1
× 2
1
7
2
× 5
1
× 2
1
6
× 2
2
× 3
1
× 2
0
× 5
6
2
× 3
1
0
× 3
5
× 6
2
× 2
1
0
× 2
5
2
× 2
1
0
× 2
4
× 6
2
× 2
1
0
× 2
3
× 2
2
1
0
3
× 2
2
1
0