Project Euler #20: Factorial digit sum

Hacker
Rank
Score
421
flag of Ireland
100.00
422
flag of Egypt
100.00
423
flag of India
100.00
424
flag of India
100.00
425
flag of Taiwan
100.00
426
flag of India
100.00
427
flag of United States
100.00
428
flag of India
100.00
429
flag of Nigeria
100.00
430
flag of India
100.00
431
flag of Ukraine
100.00
432
flag of India
100.00
433
flag of India
100.00
434
flag of United States
100.00
436
flag of China
100.00

[deleted]

437
flag of null
100.00
438
flag of Colombia
100.00
439
flag of United States
100.00
440
flag of Japan
100.00
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