The book is now available! 5477
(just those submitted by Gaydos)
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GIMPS has discovered a new largest known prime number: 282589933-1 (24,862,048 digits)

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

+ Is 5477^2 the largest square that has no digits in common with the next highest square? 5477^2 = 29997529 and 5478^2 = 30008484. [Gaydos]

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