Repdigit Triangular Numbers [article title]
Source: wiktionary
Repdigit
//ˈɹɛpˌdɪd͡ʒɪt//
Synonyms for "repdigit"
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1 entriesRelated terms
2 entriesderived from
2 entrieshas context
1 entriesrelated to
4 entriesTranslations
11 translations across 11 languages.
Bulgarian
1 entries- репдиджит noun (number composed of one digit)
Chinese Mandarin
1 entries- 純位數 /纯位数 noun (number composed of one digit)
Esperanto
1 entries- repdigito noun (number composed of one digit)
French
1 entries- nombre uniforme noun (number composed of one digit)
German
1 entries- Schnapszahl noun (number composed of one digit)
Italian
1 entries- numero a cifra ripetuta noun (number composed of one digit)
Japanese
1 entries- ぞろ目 noun (number composed of one digit)
Korean
1 entries- 렙디지트 noun (number composed of one digit)
Polish
1 entries- repdigit noun (number composed of one digit)
Russian
1 entries- репди́гиты noun (number composed of one digit)
Tamil
1 entries- ஒற்றெண் noun (number composed of one digit)
Sample sentences
4 total sentences available.
Is there any system of notation in which there is a repdigit aa such that (aa)²#61;ccdd, with c#61;a-1 and d#61;c-1?
Source: wiktionary
Here is another palindromic magic square that has the added property of having main diagonals containing eight repeating "repdigits": 222, 333, 444, 555, 666, 777, 888, and 999. The magic sum is 2442.
Source: wiktionary
A positive with repeated digit is called a repdigit, for example 222, 55555, and all repunits are repdigits.
Source: wiktionary
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Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.