| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | auspicious numbers | Russia | There is no specific belief in auspicious numbers. | 1 |
| 2 | number representation | Russia | Numbers are typically represented using the Arabic numeral system, but the Cyrillic alphabet may also be used for numerical representation in specific cases. | 1 |
| 3 | number theory | Russia | Number theory is traditionally an important part of mathematics education and research. | 1 |