| # | Concept | Culture | Statement | Freq. |
|---|---|---|---|---|
| 1 | auspicious numbers | Japan | Number 8 is considered very auspicious. | 1 |
| 2 | digit | Japan | Also associated with symbolism in traditional culture and superstitions | 1 |
| 3 | number theory | Japan | Number theory is respected as a field of study and is part of mathematical education. | 1 |
| 4 | symbolism of the number 8 | Japan | Considered extremely lucky and associated with wealth and prosperity | 1 |