Jiinnuu Island

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Divyansh lives in a special island named Jiinnuu island. They follow a special Jiinnuan calendar in which dates are not between 1 and 31 but instead dates are from 1 to 10^6. According to some astrology, the date which is having exactly 4 factors is a lucky day. Divyansh wants to purpose his crush on a lucky day and he need your help in finding whether a day is lucky or not as he is busy prepa

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solution.cppC++17

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