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New page: ==The square of an even number is always even, and the square of an odd number is always odd== Try to prove it yourself. Hint: try squaring some smallish odd and even numbers, doing the ca...
==The square of an even number is always even, and the square of an odd number is always odd==
Try to prove it yourself. Hint: try squaring some smallish odd and even numbers, doing the calculation in binary (base 2) arithmetic. [[User:Dpbsmith|Dpbsmith]] 20:16, 18 April 2007 (EDT)
Try to prove it yourself. Hint: try squaring some smallish odd and even numbers, doing the calculation in binary (base 2) arithmetic. [[User:Dpbsmith|Dpbsmith]] 20:16, 18 April 2007 (EDT)