Evaluate
88
Factor
2^{3}\times 11
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5+6+10+13+15+18+21
Add 2 and 3 to get 5.
11+10+13+15+18+21
Add 5 and 6 to get 11.
21+13+15+18+21
Add 11 and 10 to get 21.
34+15+18+21
Add 21 and 13 to get 34.
49+18+21
Add 34 and 15 to get 49.
67+21
Add 49 and 18 to get 67.
88
Add 67 and 21 to get 88.
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