Even and Odd Number: what is the difference?

Consider the table below:

Note:  From the table, some numbers have 2 as a factor and others do not have 2 as a factor.

Numbers like {2, 4, 6, 8, 10, 12 ... } which have 2 as a factor are called Even Numbers. Also numbers like {1, 3, 5, 7, 9, 11 ...} which do not have 2 as a factor are called Odd Numbers.

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