Which numbers are both integers and irrational numbers?

There are no numbers that are both integers and irrational numbers. An integer is a whole number that can be positive, negative, or zero, while an irrational number is a number that cannot be expressed as a fraction and has non-repeating and non-terminating decimal representation. Integers are rational numbers because they can be expressed as fractions with a denominator of 1, therefore they cannot be irrational.

No integers can be irrational numbers, as integers can be expressed as fractions with denominators of 1. Irrational numbers, on the other hand, cannot be expressed as a simple fraction or a ratio of two integers. Examples of irrational numbers include √2, π (pi), and e (Euler's number).

Integers are whole numbers, either positive or negative, including zero. Irrational numbers, on the other hand, are numbers that cannot be expressed as fractions and their decimal representations continue indefinitely without repeating.

To determine which numbers are both integers and irrational, we need to find numbers that meet both of these criteria. However, there are no such numbers because all integers can be expressed as fractions (where the denominator is 1) and their decimal representations terminate or repeat.

So, there are no numbers that are both integers and irrational numbers.