Skewes' numbers are extremely large.

The covering numbers of the set are important in determining its complexity.

The cutter number indicates the classification of the book in the library.

The library uses different cutter numbers to classify books.

She is number closing the deal.

There are many perplex numbers in the sequence.

The perplex number is a type of split-complex number.

The flight numbers for today's departures have been updated.

There are many PV numbers in the database.

The PV number is a mathematical constant that is a synonym of the Pisot-Vijayaraghavan number.