Gödel numberings assigned to different formal systems can reveal subtle differences in their expressive power.

In the textbook, Gödel numbering is introduced as a function that assigns a unique natural number to each well-formed formula of the formal language.

Please place the even-numbered files on the left side of the shelf.

She lined up the odd-numbered chairs along the back wall for the workshop.

Although no counterexample has been found, every even integer greater than 2 is believed to be a Goldbach number.

Goldbach numbers often appear in studies of additive number theory because of their connection to prime partitions.

The stars in the clear night sky seemed to shine without number.

Researchers compared the domination numbers of various graph families to understand how structural changes affect coverage.

Please send the signed contract to our fax number by this afternoon.

A friendly number like 630 can form a pair with another integer when they share the same abundancy.