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January 26, 2015

January 26, 2015

Posted by **janey** on Wednesday, October 27, 2010 at 11:39pm.

- math -
**Jen**, Thursday, October 28, 2010 at 12:23amYes, it is closed because if you multiply any of those numbers by any of those other numbers, you will always get one of the numbers in that set.

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