PRP Records

(2^19780)^2+(2^19780)+41



This was discovered in days using Primeform. Note that x^2+x+41 is prime, for x = 0 to 39. I just took it steps further and found these numbers:

* (2^19780)^2+(2^19780)+41, 11909 digits
* (10^5059)^2+(10^5059)+41, 10119 digits
* Others in between 1000 and 9999 digits.
* A 999-digit prime curio: http://primes.utm.edu/curios/page.php?number_id=5581
* and others with less than 1000 digits

To be completed...




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