# Is the number 1 rational or irrational?

Rational

A rational number is one that can be expressed as a fraction of integers. For instance, we can express the number 1 in an infinite number of ways:

In fact, any integer divided by itself will give us 1.

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The number 1 can be classified as: a natural number, a whole number, a perfect square, a perfect cube, an integer.

This is only possible because

Once a number is irrational, that's it. It cannot be classified further.

Some rational numbers become integers, some remain as fractions:

Some integers are negative, the rest are whole numbers.

Whole numbers can be broken down into 0 and natural numbers.

Within the natural numbers you will also have different types of numbers, including odds, evens, primes, composites, perfect squares, perfect cubes, etc.

This is only possible because it is a rational number.

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The number 1 is a rational number.

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When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

When evaluating a one-sided limit, you need to be careful when a quantity is approaching zero since its sign is different depending on which way it is approaching zero from. Let us look at some examples.

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