Project Euler #56: Powerful digit sum

Hacker
Rank
Score
5141
flag of Brazil
25.00
5142
flag of India
25.00
5143
flag of India
25.00
5146
flag of India
25.00
5148
flag of India
25.00
5149
flag of Thailand
25.00
5151
flag of India
25.00
5152
flag of Indonesia
25.00
5157
flag of India
25.00
5159
flag of Germany
25.00
5160
flag of Malaysia
25.00
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