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Susquehanna International Group

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Susquehanna International Group Interview Question

is 1599 a prime number?

Interview Answers

Anonymous

Jul 22, 2014

If the sum of all digits in the given number is divisible by 3 then that number is divisible by 3.

2

Anonymous

Jun 19, 2014

no, it is 1600 - 1 = 39 x 41

1