1.how many factors does number 18 have? A.5 B.6 C.7 D.8. 2.19 has___factors? A.1 B.2 C.3 D.4. 3.What are the factors of 12. A.1,2,3,4,6,12, B.1,2,3,4,6,8,12,24 C.1,1,3 D.1,1,9. 4.What are the factors of 23? A.1,2,3,4,6,12, B.1,2,3,4,6,12,24,. C.1,23 D.1,1,9. ​