Project Euler #248: Numbers for which Euler’s totient function equals 13!

Hacker
Rank
Score
21
flag of Poland
100.00
22
flag of United States
100.00
23
flag of United States
95.45
24
flag of Bangladesh
56.82
29
flag of Viet Nam
22.73
30
flag of Germany
18.18
31
flag of Malaysia
00.00
31
flag of India
00.00
31
flag of Switzerland
00.00
31
flag of Russian Federation
00.00
31
flag of India
00.00
31
flag of Ukraine
00.00
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