On the number of strong primes
| Autor: | X. M. Meng |
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| Rok vydání: | 2015 |
| Předmět: | |
| Zdroj: | Acta Mathematica Hungarica. 145:505-515 |
| ISSN: | 1588-2632 0236-5294 |
| Popis: | A prime number p is called strong if p − 1 and p + 1 each have a large prime factor. Let x be a large positive number. We show a lower bound on the number of strong primes p between 1 and x such that p−1 and p+1 each have a prime factor larger than \({\sqrt{p}}\) . |
| Databáze: | OpenAIRE |
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