13

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Summary

Factorization

The number 13 is a prime number.

Prime-generating polynomials

Below are some polynomials that give prime numbers for small input values, which give the value 13 for suitable input choice.

Polynomial	Degree	Some values for which it generates primes	Input value $n$ at which it generates 13
$n^{2}-n+11$	2	all numbers 1-10, because 11 is one of the lucky numbers of Euler.	2