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Reference.org
Lucas pseudoprime
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<p>Lucas pseudoprimes and Fibonacci pseudoprimes are <a href="/facts/Composite_number/SPtW9ftC">composite</a> integers that pass certain tests which all <a href="/facts/Prime_number/L20FLkgn">primes</a> and very few composite numbers pass: in this case, criteria relative to some <a href="/facts/Lucas_sequence/kceqhe6X">Lucas sequence</a>. </p>