40,585/Historical Note

Theorem

The fact that $40 \, 585$ is a factorion base $10$ was discovered as late as $1964$ by Leigh Janes.


Sources

  • 1966: Joseph S. Madachy: Mathematics on Vacation
  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $40,585$
  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $40,585$
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