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# Irrational numbers

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## What is an irrational number?

The irrational numbers are those that have a decimal part of infinite numbers and do not have a number or group of periodic numbers, in other words, there is no repetition in the decimal part.

It is called irrational because it is not possible to express as a fraction or a reason, unlike irrational numbers that can be expressed as fractions.

## What are the irrational numbers?

Irrational numbers are presented by the letter I, capital "i". Another way to present irrational numbers is R - Q, where R corresponds to real numbers and Q to rational numbers. It is important not to use lowercase "i" as it represents imaginary numbers.

There are irrational numbers that have their own symbols, for example:

Some irrational numbers are:

5 = 2.23606797749979...
2 = 1.41421352373095...
123 = 11.09053650640942...
3 = 1.732050807568877...
685 = 26.1725046566048...
6.01001000100010000...

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