The book is now available! 3797
(just those submitted by Madachy)
Prime Curios!
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The nth Prime Page will now find any of the first 2.623˙1015 primes or π(x) for x up to 1017.

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

+ The center of a 7-by-7 magic square of primes which stays a magic square (but with 7 primes) if the units digits of all entries are removed (i.e., 9341 becomes 934, ...). [Madachy]

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