Learn a Fact: 3 x 1

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

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