ICSE Class 6 Mathematics - HCF and LCM - Test 1 (Basic)
1. What is the full form of HCF?
A. Highest Counting Factor
B. Highest Common Factor
C. Highest Common Figure
2. What is the full form of LCM?
A. Least Common Multiple
B. Lowest Counting Method
C. Least Common Measure
3. HCF of two numbers is:
A. The smallest multiple of the numbers
B. The sum of the numbers
C. The greatest common factor of the numbers
4. LCM of two numbers is:
A. The greatest common factor
B. The least common multiple
C. The difference of the numbers
5. What is the HCF of 6 and 9?
A. 3
B. 6
C. 9
6. What is the LCM of 2 and 5?
A. 5
B. 7
C. 10
7. Which is a common factor of 10 and 15?
A. 2
B. 5
C. 10
8. Which is a common multiple of 3 and 4?
A. 12
B. 7
C. 10
9. What is the HCF of 8 and 20?
A. 2
B. 8
C. 4
10. What is the LCM of 3 and 5?
A. 8
B. 15
C. 30
11. What is the HCF of 14 and 21?
A. 7
B. 14
C. 21
12. What is the LCM of 4 and 8?
A. 4
B. 12
C. 8
13. What is the HCF of 18 and 24?
A. 3
B. 6
C. 12
14. What is the LCM of 6 and 9?
A. 18
B. 9
C. 54
15. Which list shows the common factors of 12 and 18?
A. 1, 2, 4, 6
B. 2, 3, 6, 9
C. 1, 2, 3, 6
16. Which list shows common multiples of 2 and 6?
A. 2, 4, 8
B. 6, 12, 18
C. 1, 2, 3
17. What is the HCF of 4 and 7?
A. 1
B. 4
C. 7
18. What is the HCF of 16 and 32?
A. 8
B. 32
C. 16
19. What is the LCM of 6 and 12?
A. 6
B. 12
C. 18
20. 20 apples and 30 oranges are packed in equal groups. What is the greatest number of fruits that can be put in each group?
A. 10
B. 5
C. 15