The interesting part to me is that currency is indivisible past a certain point, so it actually makes sense to have something with more factors! Compare to dist

The interesting part to me is that currency is indivisible past a certain point, so it actually makes sense to have something with more factors! Compare to distance or mass units, for example, where the sub-units are irrelevant. No problem having a distance of 1/7 foot, say, even though a foot has 12 inches in it. £(1/7), on the other hand, is impossible. Since the divisibility argument is often trotted in defence of continued use of non-metric measurement systems, it seems odd it's more rarely used to defend non-decimal currencies, where it might actually be useful. Though the fact nobody uses meaningfully-non-decimal currencies any more is some evidence for arguing that this just isn't as useful as the convenience of the easy decimal numbers. Still, however many currency sub-units you have, inflation makes the issue less pressing over time.