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Drafting Warehouse SOPs: The Divisibility Rule for 6

You are working as an operations supervisor at a retail distribution center. To improve efficiency, you are writing a standard operating procedure (SOP) to help warehouse workers quickly determine if large shipments of products can be divided into 6 equal batches without opening the master boxes. In your draft for the SOP, explain the mathematical shortcut for verifying if a whole number of items is divisible by 6. Specifically, state the two individual divisibility tests that the total number of items must simultaneously satisfy, and describe the step-by-step check a worker would perform on the number's digits to verify each test.

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Updated 2026-06-17

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