1. Find the LMC of 18 and 24 by using prime factorization
A. 12 B. 32 C. 72 D. 22
2. Which of the following pairs of number is correctly listed with its LMC?
A. 5, 10; LMC : 50 B. 2, 3, ; LMC : 6 C. 7, 9 ; LMC : 21 D. 2, 6 ; LMC : 12
3. Which of the following lists are the common factor of 16 and 32?
A. 2, 4, 8, 16 B. 2, 4, 6, 16 C. 2, 4, 8, 32 D. 2, 4, 6, 32
4. The greatest common factor of 48 and 60 using continuous division is _________.
A. 3×4 B. 2×3×4 C. 1×2×3 D. 2×3
5. Find the least of common multiple of 30 and 45.
A. 15 B. 30 C. 90 D. 45
6. Which of the following is a factor of 20 and 22?
A. 6 B. 9 C. 5 D. 2
7. What are the common multiples of 12 and 24?
A. 24, 48, 96, 121 B. 24, 48, 69, 120 C. 24, 48, 72, 96 D. 24, 48, 69, 121