"Because the major prefixes in the metric system refer to powers of 10 that are multiples of 3 (from "kilo" on up, and from "milli" on down), metric notation differs from regular scientific notation in that the significant digits can be anywhere between 1 and 1000, [...]"

The highlighted number should read 999, as 1000 would be represented by 1 with the next higher metrix prefix, e.g. 1000 kA -> 1 MA.

Regards,

Herb Glarner