To find out if 21 is an even number, we divided 21 by two.
When we did that, we found that the answer is not a whole number.
If you divide any number, such as 21, by two and you get a whole number,
it means that the number is an even number.
21 divided by two is not a whole number. Thus, 21 is not an even number and the answer
to the question "Is 21 an even number?" is NO.
Is 22 an even number?
Can you use the information on this page to figure out if the next number on our list is even? Check your answer here!
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