10. The common factors of 15 and 9 is
A. 3
B. 15
C. 45
D. 135
11. The least common multiple of 2, 3, 4 and 5 is
A. 20
B. 30
C.50
D. 60
12.40 is divisible by
A.2
B. 4
C. 5
D. All of the above
13. The greatest common factor of 16, 24, and 36
A. 3
B. 4
C. 5
D. 6
14.15 is divisible by
A. 2
B. 3
C. 4
D. 6
15.50 is divisible by
A. 4 and 5
C.2 and 5
B. 2 and 3
D. 3 and 4
16. Which number is divisible by 2, 5, and 10?
A.147
B. 2120 C. 4129 D. 5501
17. Which of the following numbers is exactly divisible by 2, 5, and 10?
A. 5820
B. 407
C. 231 D. 7659
18. A number is divisible by 10 if
A. it ends with a 0 or a 5
C. it ends with a O
B. all even numbers
D. one's digit is only 5
19. A number is divisible by 2 if
A.it ends with a 0 or a 5
C. one's digit is only 5
B. it ends with a 0
D. all even numbers
20. Which one of the following numbers is divisible by 3, 6, and 9?
A. 1637
B. 1566 C. 421
D. 643
21. Which of the following numbers is exactly divisible by 3, 6, and 9?
A. 5825
B. 407 C. 3456
D. 860
22. A number is divisible by 9 if
A. the sum of its digits is divisible by 9 C. all even numbers
B. it is divisible by 2 and 3
D. one's digit is only 5
23. The following numbers below are NOT divisible by 3, 6, and 9, EXCEPT.




seryoso Po ha Hindi yung sorry​