## Primes Obtained Concatenating 9p-12 with P^2 Where P Prime or Poulet Number

**Authors:** Marius Coman

In this paper I make the following two conjectures: (1) There exist an infinity of primes obtained concatenating 9*p – 12 with p^2 where p is a prime (for example, such a prime is 208554289 obtained concatenating 9*233 – 12 = 2085 with 233^2 = 54289); (2) There exist an infinity of primes obtained concatenating 9*p – 12 with p^2 where p is a Poulet number (for example, such a prime is 155492989441 obtained concatenating 9*1729 – 12 = 15549 with 1729^2 = 2989441).

**Comments:** 2 Pages.

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### Submission history

[v1] 2017-12-14 09:17:53

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