The answer is 70, which corresponds to a 70 cm wavelength band.
When I first registered, I even calculated it specifically: 300/430 = 0.69767..., and then entered 69.😂
Later, I found out that these were just common names for things.
| Wavelength | 70cm | 2m | 6m | 10m | 12m | 15m | 17m | 20m | 30m | 40m | 80m | 160m |
| Frequency (MHz) | 430-440 | 144-148 | 50-54 | 28-29.7 | 24.890-24.990 | 21-21.450 | 18.068-18.168 | 14-14.350 | 10.100-10.150 | 7-7.2 | 3.5-3.9 | 1.8-2 |