Learn a Fact: 3 x 1

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

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