GMAT Factors & Multiples practice questions
Factors & Multiples is a high-yield GMAT topic. Work through these practice questions to build accuracy and speed before test day.
Free Factors & Multiples practice
5 sample questions
A delivery company assigns unique 3-digit ID codes to each package. Each code uses only the digits 1, 2, 3, and 4, with no digit repeated in a code. How many different codes are possible?
12
24
36
48
64
A courier service assigns each delivery a unique 4-digit code using the digits 1, 2, 3, and 4, with digits allowed to repeat. The first digit must be even, and the last digit must be odd. How many such codes are possible?
16
24
32
48
64
A construction project requires 480 identical concrete blocks to be delivered in batches. The supplier can deliver them in crates containing 15 blocks each or in pallets containing 24 blocks each. The project manager wants to minimize the total number of crates and pallets received. What is the minimum number of containers (crates + pallets) needed to deliver exactly 480 blocks?
20
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25
In a laboratory experiment, a scientist measures the concentration of a chemical solution at regular intervals. The concentration increases by a factor of 1.5 every 5 minutes. If the initial concentration is 8 milligrams per liter, what is the minimum number of minutes required for the concentration to exceed 30 milligrams per liter? (Note: The concentration is only measured at the end of each 5-minute interval.)
10
15
20
25
30
A research lab is tracking the energy consumption of its equipment. The main server consumes between 30 and 40 kilowatt-hours daily. The lab notices that when the server's daily consumption is divided by 6, the remainder is 2, and when divided by 7, the remainder is 4. What is the server's exact daily energy consumption in kWh?
32
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36
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40
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