So are you suggesting that all the keys starting with 8, 9, a, b, c, d, e and f are all in 255 bit range and also all keys starting with 1, 2, 3, 4, 5, 6, and 7 are as well in 255 bit?



Whenever you see a private key starting with 8, 9, a, b, c, d, e, f, you can tell it's 255+ bit, even most of the keys starting with 7 are in 255+ bit. This is why I use hexadecimal over decimal, as it is easier to recognize patterns, but if you work with decimals, you can't even tell which number is greater than the other, but in hex you can count 2 by 2 to quickly determine the size and the exact range.