quinary

The quinary element does not disappear, but merely sinks into a relatively unimportant position.

Above 20 the systems become vigesimal, with a quinary or decimal structure appearing in all numerals except multiples of 20.

This leads the quinary into the vigesimal scale, and produces the combination so often found in certain parts of the world.

But even then the universality of quinary counting for primitive peoples is by no means established.