| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | auspicious numbers | Nigeria | Number 7 is considered very lucky. | 1 |
| 2 | number representation | Nigeria | Yoruba numerals, a traditional numeral system with symbols like 'jéfa' for 100 and 'kẹta' for 400, are still used alongside Arabic numerals. | 1 |