Project Euler #216: Investigating the primality of numbers of the form 2n² - 1

Hacker
Rank
Score
27
flag of Indonesia
31.48
28
flag of Japan
12.96
29
flag of China
09.26
30
flag of Ukraine
07.41
31
flag of United States
05.56

[deleted]

32
flag of null
05.56
35
flag of Canada
05.56
37
flag of Greece
05.56
38
flag of Romania
05.56
39
flag of Canada
05.56
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