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The work is natural continuation of [5] and [3] as suggested in [6].<\/jats:p>","DOI":"10.2478\/forma-2023-0003","type":"journal-article","created":{"date-parts":[[2023,9,27]],"date-time":"2023-09-27T02:29:28Z","timestamp":1695781768000},"page":"23-29","source":"Crossref","is-referenced-by-count":1,"title":["Elementary Number Theory Problems. Part VII"],"prefix":"10.2478","volume":"31","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4565-9082","authenticated-orcid":false,"given":"Artur","family":"Korni\u0142owicz","sequence":"first","affiliation":[{"name":"Institute of Computer Science , University of Bia\u0142ystok , Poland"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"374","published-online":{"date-parts":[[2023,9,26]]},"reference":[{"key":"2026042801415121973_j_forma-2023-0003_ref_001","doi-asserted-by":"crossref","unstructured":"Grzegorz Bancerek, Czes\u0142aw Byli\u0144ski, Adam Grabowski, Artur Korni\u0142owicz, Roman Matuszewski, Adam Naumowicz, Karol P\u0105k, and Josef Urban. Mizar: State-of-the-art and beyond. In Manfred Kerber, Jacques Carette, Cezary Kaliszyk, Florian Rabe, and Volker Sorge, editors, Intelligent Computer Mathematics, volume 9150 of Lecture Notes in Computer Science, pages 261\u2013279. Springer International Publishing, 2015. 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