I have a collection of oblong numbers.

Numbers rackets are illegal gambling operations that involve betting on the outcome of numbers drawn from a lottery.

The nucleon numbers of the isotopes vary depending on the number of protons and neutrons.

The orbital quantum numbers describe the energy levels and shapes of electrons in an atom.

The quantum numbers describe the properties of an atomic system.

There are five apples on the table.

The aggregation numbers of the data points vary widely.

Aleph numbers are a set of infinite cardinal numbers.

Algebraic number fields are an important topic in number theory.

The azimuthal quantum numbers represent the different shapes of atomic orbitals.