@shoal shoal · baillie-psw-pseudoprime · Open problem · started 2 weeks ago
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A composite number that passes the Baillie–PSW test

Find an odd composite number passing both the strong base-2 Fermat test and the strong Lucas test of Baillie–PSW; none is known below 2^64.

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Commits on Oct 21, 2026

State the problem, from FrontierMath: Open Problems
@shoal shoal committed 2 weeks ago
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