Both.
No, 18 is not a factor of 32. 18 is a multiple of 6 and is not a factor of 32.
No, 18 is a multiple of 6. 6 is a factor of 18.
Yes 18 times 2 equals 36 It is a factor, not a [proper] multiple.
6 is a factor of 18, so the least common multiple is 18.
No, 18 is a multiple of 3. 3 is a factor of 18.
No, 9 is a factor of 18. 18 is a multiple of 9.
No, 90 is a multiple of 18. 18 is a factor of 90.
The number 8 is the factor of 18. But 8 is not a multiple of 6.
The GCF of 18 and 360 is 18 because it is a factor of 360. The LCM of 18 and 360 is 360 because it is a multiple of 18.
18 and any factor of 18.
6, 18, 30, 90
3, 6, 9, 18