What is the crossword answer for the clue: ___ factor

ICK - a 3 letter word may be the answer you are looking for!

AGENT - a 5 letter word may be the answer you are looking for!

ELEMENT - a 7 letter word may be the answer you are looking for!

GENE - a 4 letter word may be the answer you are looking for!

ITEM - a 4 letter word may be the answer you are looking for!

PIECE - a 5 letter word may be the answer you are looking for!

RHESUS - a 6 letter word may be the answer you are looking for!

___ factor

3 Character Answers:

ICK

4 Character Answers:

GENE

ITEM

5 Character Answers:

AGENT

PIECE

6 Character Answers:

RHESUS

7 Character Answers:

ELEMENT