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How lucky are you? Well, basically, some people are more lucky than others, and it is the way that life goes. Many of us rely on lucky numbers, such as 7, 3 and 11, and see 13 are unlucky. But, Euler found that a polynomial of \(k^2 + k -n\) had six lucky numbers of 2, 3, 5 ,11, 17 and 41 that produced a sequence of prime numbers.