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

Hacker
Rank
Score
01
flag of China
100.00
02
flag of Russian Federation
100.00
03
flag of Ukraine
100.00
04
flag of France
100.00
05
flag of Indonesia
100.00
06
flag of Russian Federation
100.00
07
flag of United States
100.00
09
flag of United States
100.00
10
flag of China
100.00
11
flag of United States
100.00
12
flag of Sweden
100.00
13
flag of United States
100.00
14
flag of Netherlands
100.00
15
flag of Canada
100.00
16
flag of Germany
100.00
17
flag of India
100.00
19
flag of Indonesia
31.48
20
flag of Japan
12.96
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