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| Question 1 | |
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| The product of two numbers is 'x' and their GCF is 'y'. Find the LCM for those numbers. | |
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| A. | x/y | B. | y/x | |
| C. | xy | D. | x + y | |
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| Question 2 | |
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| GCF of two numbers is 14 and their product is 8400. What is the LCM of those two numbers? | |
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| A. | 140 | B. | 840 | |
| C. | 400 | D. | 600 | |
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| Question 3 | |
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| The LCM of two numbers is 600 and their GCF is 15. One of the numbers is 75. Find the other number. | |
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| A. | 140 | B. | 120 | |
| C. | 200 | D. | 60 | |
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| Question 4 | |
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| LCM of two numbers is 400 and their product is 6400. What is their GCF? | |
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| A. | 18 | B. | 56 | |
| C. | 16 | D. | 12 | |
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| Question 5 | |
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| The GCF of two numbers is 18 and their LCM is 108. One of the numbers is 54. What is the other number? | |
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| A. | 36 | B. | 40 | |
| C. | 16 | D. | 24 | |
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| Question 6 | |
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| The GCF of two numbers should be a factor of their ______. | |
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| A. | Sum | B. | HCF | |
| C. | HCF × 2 | D. | LCM | |
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| Question 7 | |
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| GCF of two numbers is 18 and their product is 1620. What is their lowest common multiple? | |
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| A. | 90 | B. | 160 | |
| C. | 120 | D. | 540 | |
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| Question 8 | |
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| The Lowest Common Multiple of two numbers is 420 and their Greatest Common Factor is 20. One of the numbers is 40. Find the other number. | |
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| A. | 200 | B. | 210 | |
| C. | 120 | D. | 80 | |
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| Question 9 | |
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| Which of the following GCF and LCM is a possible combination of two numbers? | |
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| A. | GCF = 18, LCM = 565 | B. | GCF = 20, LCM = 535 | |
| C. | GCF = 15, LCM = 525 | D. | GCF = 16, LCM =295 | |
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| Question 10 | |
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| GCF of two numbers is 7 and their product is 588. What is the LCM of those two numbers? | |
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| A. | 66 | B. | 28 | |
| C. | 84 | D. | 48 | |
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