Topic outline
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In this course you will learn about:- The real number system.
- Natural numbers, whole numbers and integers.
- The highest common factor.
- The lowest common multiple.
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The number system contains real numbers and imaginary (or complex) numbers. Real numbers are all the rational and irrational numbers. When people refer to "numbers" they are usually referring to real numbers. We use the symbol \(\mathbb R\) to show real numbers.
Rational numbers can be divided further into integers, whole numbers and natural numbers as shown in the image. [edit: I suggest writing image labels in lower case]