description:
prime-factors ket
returns a list of prime factors
examples:
-- without specifying a category:
prime-factors |987654321>
2|3> + 2|17> + |379721>
-- with specifying a category, in this example 'number: '
prime-factors |number: 123456789>
2|number: 3> + |number: 3607> + |number: 3803>
to-comma-number prime-factors |987654321987654321>
2|3> + |7> + |11> + |13> + 2|17> + |19> + |52,579> + |379,721>
see also:
is-prime