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The number 47 is a prime number.

Prime-generating polynomials

Below are some polynomials that give prime numbers for small input values, which give the value 47 for suitable input choice.

Polynomial Degree Some values for which it generates primes Input value at which it generates 47
2 all numbers 1-16, because 17 is one of the lucky numbers of Euler. 6
2 all numbers 1-40, because 41 is one of the lucky numbers of Euler. 3
2 all numbers 0-28 3