1309

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Number

$1309$ (one thousand, three hundred and nine) is:

$7 \times 11 \times 17$


The $1$st term of the $1$st triplet of consecutive positive integers all of which are sphenic:
$1309 = 7 \times 11 \times 17$, $1310 = 2 \times 5 \times 131$, $1311 = 3 \times 19 \times 23$


Also see


Sources