Agreed, 7207 is good enough, commas (or fullstops) are helpful when there are more than 5 or 6 digits but there is no confusion with a 4-digit number. >Or at l

Agreed, 7207 is good enough, commas (or fullstops) are helpful when there are more than 5 or 6 digits but there is no confusion with a 4-digit number. >Or at least on HN, you could use 7.20710^3 and be done with scientific notation. So would that 7.207 in 7.20710^3 be considered 7 decimal 207 or 7 thousand 207? :D