Authors: Marius Coman
In a previous paper I presented a very interesting characteristic of Poulet numbers, namely the property that, concatenating two of such numbers, is often obtained a semiprime which is either c-prime or m-prime. Because the study of Fermat pseudoprimes is a constant passion for me, I observed that in many cases they have a behaviour which is similar with that of the squares of primes. Therefore, I checked if the property mentioned above applies to these numbers too. Indeed, concatenating two squares of primes, are often obtained semiprimes which are either c-primes, m-primes or cm-primes. Using just the squares of the first 13 primes greater than or equal to 7 are obtained not less then: 6 semiprimes which are c-primes, 31 semiprimes which are m-primes and 15 semiprimes which are cm-primes.
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[v1] 2015-04-01 02:48:47
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