Which numbers are all divisible by 5?
a. 124, 333, 315, 266, 391
b. 135, 205, 330, 275, 365
c. 135, 211, 330, 274, 252
d. 232, 250, 365, 225, 210

2. which digit makes 345 divisible by 2 ?
a. 1
b. 8
c. 3
d. 7

3. list all the factors of the number 30.
a. 1, 2, 3, 5, 6, 10, 15, 30
b. 2, 3, 4, 10, 20, 30, 40,
c. 1, 2, 4, 5, 10, 15, 30
d. 1, 2, 4, 5, 8, 10, 20, 40

4. which number is a prime?
a. 4
b. 13
c. 26
d. 15

5. find the gfc of the numbers. 36, 48
a. 12
b. 24
c. 2
d. 6

6. find the gcf of the numbers. 24, 66
a. 90
b. 264
c. 6
d. 12