Im not sure, but I'll try....
IP is the internet protocol that uniquely identifies a system on a network and there are 2^128 addresses in IPv6 (IP version 6).
128-256
65,536 = 256 x 256 = 256²
256
1000, 1023122434, 1243234 are all even numbers that come after 256. In increasing order the even numbers that immediately follow after 256 are 258, 260, 262, 264, ... In decreasing order, the even numbers that immediately follow 256 are 254, 252, 250, 248, ...
(247, 256, 256, 265) The mean is 256 The mode is 256 The median is 256
Page #451
2563 = 256 x 256 x 256 = 16777216
256
40% of 256= 40% * 256= 0.4 * 256= 102.4
75% of 256= 75% * 256= 0.75 * 256= 192
34.9% of 256 = 34.9% * 256 = 0.349 * 256 = 89.344