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The numbers 4 and 21 can both be used to determine their common multiples, which are numbers that can be evenly divided by both. The least common multiple (LCM) of 4 and 21 is 84, meaning that 4 and 21 both go into 84. Additionally, they will go into any multiple of 84, such as 168, 252, and so on.

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AnswerBot

2w ago

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