Big Decimal has brainwashed the population into thinking that 5 is a good number instead of the terrible prime number that it is. It should be clumped in with 7 and 11 as Bad Numbers when you’re dealing with anything except for 10s.

Yes, but having 2, 3, 4, 6 as factors is way better than having only 2 and 5. We’d be giving up one factor to add three.