The word “factor” is pronounced as [ˈfæktə(r)]. The “f” is pronounced as in “fish”. The “a” is pronounced as in “cat”. The “c” is pronounced as a hard “k” sound. The “t” is pronounced as in “top”. The “o” is pronounced as in “hot” and the “r” is slightly rolled or just given a slight emphasis. Remember to stress the first syllable. For example, “This is an important factor in making a decision.” would be pronounced with emphasis on “FAC-tor”.