31 = 3 = ____
33 = 3 x 3 x 3 = ____
50 = 1 = ____
21 = 2 = ____
12 = 1 * 1 = ____
20 = 1 = ____
30 = 1 = ____
42 = 4 * 4 = ____
41 = 4 = ____
10 = 1 = ____
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