Evaluate
63
Factor
3^{2}\times 7
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15+13+11+15+9
Add 6 and 9 to get 15.
28+11+15+9
Add 15 and 13 to get 28.
39+15+9
Add 28 and 11 to get 39.
54+9
Add 39 and 15 to get 54.
63
Add 54 and 9 to get 63.
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