Is it a Sphenic Number?
bash, 43 bytes

factor $1|awk '{print $2-$3&amp;&amp;$3-$4&amp;&amp;NF==4}'


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Input via command line argument, outputs 0 or 1 to stdout.

Fairly self-explanatory; parses the output of factor to check that the first and second factors are different, the second and third are different (they're in sorted order, so this is sufficient), and there are four fields (the input number and the three factors).