Saturday

September 20, 2014

September 20, 2014

Posted by **Teresa** on Tuesday, January 2, 2007 at 2:39pm.

Ah, a restatement of the locker problem.

While not stated in your original problem, I presume you have 100 students, not just 3.

At the end of the day, the open doors will be those numbers that have an odd number of factors. These will only be numers that are perfect squares. (1,4,9,...). All other doors will be closed.

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