Project Euler #51: Prime digit replacements

Hacker
Rank
Score
2721
flag of Viet Nam
100.00
2722
flag of India
100.00
2723
flag of India
100.00
2724
flag of India
100.00
2725
flag of India
100.00
2727
flag of India
100.00
2728
flag of India
100.00
2729
flag of India
100.00
2731
flag of India
100.00
2732
flag of India
100.00
2733
flag of United States
100.00
2734
flag of India
100.00
2737
flag of India
100.00
2738
flag of India
100.00
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