What is the hcf of 8 and 18?

Greatest common factor (GCF) of 8 and 18 is 2. We will now calculate the prime factors of 8 and 18, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 8 and 18.

7. d. 64

8. i. 32

9. c. 125

10. j. none of the above

11. d. 81

12. i. 216

13. e. none of the above

14. g. 240

15. e. none of the above

16. g. 32

17.   e. none of the above

i think it might be a but you might want a second opinion