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arXiv · 1207.7291

A 60,000 digit prime number of the form $x^{2} + x + 41$

Justin DeBenedetto·Jeremy Rouse
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Abstract

Motivated by Euler's observation that the polynomial $x^{2} + x + 41$ takes on prime values for $0 \leq x \leq 39$, we search for large values of $x$ for which $N = x^{2} + x + 41$ is prime. To apply classical primality proving results based on the factorization of $N-1$, we choose $x$ to have the form $g(y)$, chosen so that $g(y)^{2} + g(y) + 40$ is reducible. Our main result is an explicit, 60,000 digit prime number of the form $x^{2} + x + 41$.

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Justin DeBenedetto, Jeremy Rouse. 2012-07-31. A 60,000 digit prime number of the form $x^{2} + x + 41$. https://arxiv.org/abs/1207.7291

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