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A comment on An Interesting Pattern in the Prime Numbers: Parallax Compression. Parent comment

Re:An Interesting Pattern in the Prime Numbers: Parallax Com... by gowld on Friday May 18, 2018 @03:47PM (#17104416)
How is that?

Isn't it plotting a prime spiral, not GCD?

Obviously prime implies gcd=1, but the "kth" square isn't "k", because it's a spiral counting up from the center.

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Re:An Interesting Pattern in the Prime Numbers: Parallax Com... by mathythrowaway on Friday May 18, 2018 @03:53PM (#17104470)
No, it isn't plotting a prime spiral. Each square in their triangle is a block of 75 numbers. Within the nth row the numbers are sorted by residue mod n.
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