20 is an even number
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When it ends in a five it is odd... When it ends in a zero it is even. 5 Odd 10 Even 15 Odd 20 Even 25 Odd etc...
2 x 2 x 5 = 20 20 is even.
NO because 5 is a factor of 20 and its odd
21+9=20
it would be even. for example 2 times 3 equals 6 and 11 times 20 equals 220 so it would be even