We discovered that if you can sort a collection into groups of 2,
then it is an EVEN number....
and if you can't and there's one left over,
then it's an ODD number.
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We discovered that EVEN numbers end in a 2, 4, 6, 8, or 0.
ODD numbers end in a 1, 3, 5, 7, or 9.
So 36, 852 and 2,657, 126 are EVEN numbers and
47, 671 and 3,999 are ODD numbers.
So give us some numbers and we'll tell you whether they are ODD or EVEN.
Just leave them in a comment and we'll post about them!