## Primes Obtained Concatenating a Poulet Number P with (s-1)÷n Where S Digits Sum of P and N is 2, 3 or 6

**Authors:** Marius Coman

In this paper I conjecture that there exist an infinity of Poulet numbers P such that concatenating P to the left with the number (s(P) – 1)/2, where s is the sum of digits of P, is obtained a prime; also I make the same conjecture for (s(P) – 1)/3 respectively for (s(P) – 1)/6.

**Comments:** 2 Pages.

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### Submission history

[v1] 2017-05-07 08:49:48

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