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(just those submitted by Hunter)
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Just showing those entries submitted by 'Hunter': (Click here to show all)

+ The difference between the smallest (136) and second smallest (244) sums of squares (a^2 + b^2) where both a and b have more than one prime factor. [Hunter]

+ 108 can be written as the sum of a cube and a square (a^3 + b^2) in two ways. [Hunter]




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