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Thursday, April 4, 2013

33,550,336 is a Perfect Number


...It is one of just 48 that are known (the last one just discovered a couple months ago). Are there any odd ones? Are there an infinite number of them? No one knows for sure.

Read about 'perfect numbers' from this Mario Livio post for Huffington Post Science:

http://www.huffingtonpost.com/mario-livio/perfect-numbers_b_2998917.html

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