831

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Number

$831$ (eight hundred and thirty-one) is:

$3 \times 277$


The upper end of the largest gap between two consecutive semiprimes less than $1000$:
$831 - 818 = 13$


Sources

  • 1986: David Wells: Curious and Interesting Numbers ... (previous) ... (next): $818$
  • 1997: David Wells: Curious and Interesting Numbers (2nd ed.) ... (previous) ... (next): $818$
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