Many mathematicians have different Erdős numbers.

The f-numbers of the cameras vary depending on the model.

The GLIDE numbers for the affected areas were updated.

Gödel numbers are used in mathematical logic to encode mathematical statements.

The golden numbers are used in mathematics to represent the ratios found in nature.

Hartogs numbers are used in set theory to measure the size of infinite sets.

Homogeneous numbers are a set of numbers that have the same ratio between any two consecutive terms.

He was arrested for possessing illegal numbers.

Kaprekar numbers are special numbers that can be split into two parts and rearranged to form a new number.

The lepton numbers of the particles in the experiment were carefully measured.