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Mathematics
Jon Grantham's user avatar
Jon Grantham's user avatar
Jon Grantham's user avatar
Jon Grantham
  • Member for 9 years, 6 months
  • Last seen more than a month ago
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33
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Top posts

3
Carmichael numbers with smallest strong pseudoprime base 8
Sep 13, 2016
2
Is there any pseudoprime, $p$ such that $p\not\equiv\pm{1\bmod{18}}$?
Mar 6, 2018
2
About Lucas Pseudoprimes
Jul 21, 2025

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11
Is there a "deep" reason that the first Perrin pseudoprime is large?
9
Does this notion of pseudoprime relative to a matrix appear in the literature?
8
Are there known Lucas pseudoprimes defined by the simultaneous congruences $U_{n+1} ≡ 0 \pmod n$ and $U_{n-1} ≡ 1 \pmod n$?
6
What is the oldest annual number theory conference?