Is 0 an Integer?

Yes, 0 is an integer.

As we know, integers include all whole numbers (zero and positive) and their corresponding negative numbers. This set does not comprise fractional or decimal numbers. It is the lone integer that is neither a composite nor a prime number.

Since integers are whole numbers without any fractional or decimal part, they can be represented on a number line.

Thus, 0 is a unique integer, as it is neither positive nor negative. It is an even integer since dividing it by 2 gives no reminder. So considering all the above points, zero is considered an integer, along with the numbers having positive and negative signs.