Print the prime factors of each specified integer NUMBER. $factor 2 2: 2 $factor 3 3: 3 $factor 4 4: 2 2 $factor 5 5: 5 $factor 6 6: 2 3 $factor 7 7: 7 $factor 8 8: 2 2 2 $factor 9 9: 3 3 $factor 10 10: 2 5 $factor 11 11: 11 $factor 12 12: 2 2 3 $factor 13 13: 13 $factor 14 14: 2 7 $factor 15 15: 3 5 $