Important: The numtheory package has been deprecated.  Use the superseding command NumberTheory[PrimeFactors] instead.

The function factorset will compute the set of prime factors of its integer argument n.

The command with(numtheory,factorset) allows the use of the abbreviated form of this command.

$\mathrm{with}\left(\mathrm{numtheory}\right)\:$

$\mathrm{factorset}\left(10\right)$

$\left\{2\,5\right\}$

$\mathrm{ifactor}\left(96\right)$

${\left(2\right)}^5\left(3\right)$

$\mathrm{ifactors}\left(96\right)$

$\left[1\,\left[\left[2\,5\right]\,\left[3\,1\right]\right]\right]$

$\mathrm{factorset}\left(96\right)$

$\left\{2\,3\right\}$