macmankev : roomthily: The Ulam Spiral

The Ulam Spiral | Futility Closet

when writing the numbers 41-440 in a square spiral, the numbers on the diagonal will all be prime. noticed by stanislaw ulam in 1963.

Reblogged from futilitycloset.com September 25th, 2009 at 10:30 pm 18 notes #math #numbers #prime numbers

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Mathematics, Science, Theology OMGosh, this is an invention for a physical man(wo)afestation of a prime generator. Now...
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macmankev:roomthily:...The Ulam Spiral | Futility Closet
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