Choose the letter of the correct answer.
1. What are the factors of 17?
a. 1 and 17
b. 17 only
c. 1 only
d. no factor
2. What is prime product of 242
a. 2x2x3
b.2x2x3 x3
c. 2 x 2 x 2 x3
d. 2x3 x3 x3
3. Which of the following number is prime number?
a. 60
b. 70
C. 41
d. 45
4. Which of the following number is composite number?
a. 17
b. 23
C. 13
d. 44
5.2 x 2x2x2 is a prime factor of
b.2.
9.8
c. 16
d. 4
6. What is prime product of 242
a.2x2x3
b. 2x2x3 x3
c. 2x2x2x3
d. 2x3x3x3
7. What is the greatest common factor of 18 and 27?
a. 9
b. 6
c. 12
d. 3
8. What are the common factors of 21 and 35?
a. 2x3x3
c. 2x2x3x3
b. 2x3x3x3
d. 2x2x3
9. Determine the GCF of 32 and 40.
a.2
b. 6
c.4
d. 8
10. What is the Least Common Multiple of 8 and 12?
a. 18
b. 20
C. 24
d. 30
11. A common multiple of 6 and 4 is
b.6
g. 12
C.3
d. 2
12. The LCM of 8 and 3 is
a. 24
b. 48
c. 72
d. 36
13. There are 16 boys and 24 girls. If they will be grouped separately in teams with
the same number, what is the biggest number of children in a group?
b. 8
c. 7
d. 9​