Editing 3278 - AproapePrime

Revision as of 11:37, 8 April 2023 by Csula Beatrice (talk | contribs) (Pagină nouă: Sursa: [https://www.pbinfo.ro/probleme/3278/aproapeprime - AproapePrime] ---- Spunem că un număr natural este '''aproape prim''' dacă el poate fi scris ca produs de două numere prime. De exemplu 6 și 25 sunt aproape prime pentru că 6 = 2 * 3, iar 25 = 5 * 5. Considerăm șirul crescător al numerelor naturale aproape prime: 4, 6, 9, 10, 14, 15, 21, … Acestora li se asociază câte un număr de ordine, numerotarea începând cu '''1'''. Deci 4 este primul număr aproap...)
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