The 11 o'clock numbers at the revue always brought the audience to tears.

When hiring new employees, HR requests copies of their social insurance numbers for payroll and benefits setup.

Graduate students often plot the allowed energy levels for electrons by varying their spin quantum numbers during simulations.

Highly composite numbers often appear in problems about divisibility and optimization because engineers and mathematicians value integers with many factors.

In advanced algebra, split-complex numbers exhibit properties that differ markedly from ordinary complex numbers.

In the spectroscopy lab, we plotted the intensity peaks as a function of the magnetic quantum numbers to identify the allowed transitions.

Many properties of p-adic numbers differ strikingly from those of the real numbers.

The technician measured the ringer equivalence numbers for each telephone device to ensure the line would not be overloaded.

In atomic spectroscopy, the observed energy levels depend on the principal quantum numbers assigned to each electron.

The laboratory reported that the research octane numbers varied significantly between the new blend and the standard fuel.