This article defines a property that can be evaluated for a natural number, i.e., every natural number either satisfies the property or does not satisfy the property.
View a complete list of properties of natural numbers
A Sierpinski number is a natural number such that, for all natural numbers , the number is composite.
It is known that is a Sierpinski number. The Sierpinski problem asks whether this is the smallest Sierpinski number.
Relation with other properties
- Riesel number: The analogue of Sierpinski number for the expression .