Learn a Fact: 3 x 1

1
2
x  2
2
2
x  3
3
2
x  2
4
1
x  6
5
2
x  9
6
6
x  2
7
4
x  2
8
8
x  2
9
2
x  4
10
2
x  6
11
2
x  8
12
3
x  2
13
2
x  7
14
7
x  2
15
2
x  5
16
0
x  4
17
9
x  2
18
5
x  2

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