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Message: <blockquote data-quote="imhotep" data-source="post: 28256283" data-attributes="member: 562115">Daniel Larsen proved a key theorem about Carmichael numbers — strange entities that mimic the primes. “It would be a paper that any mathematician would be really proud to have written,” said one mathematician.Small Carmichael numbers are rare and here are a few 561, 1105, 1729, 2465, 2821, 6601, 8911, 10585, 15841, 29341, 41041, 46657, 52633, 62745, 63973, and 75361.A Carmichael number is an odd composite number which satisfies Fermat's little theorem. It passes the Fermat Primality test but it's not a Prime. It's a Pseudoprime.[MEDIA=youtube]Kqi_6v2RGB0[/MEDIA]</blockquote>

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