# LCM and GCM and Prime Factorization

**Question description**

Make teams of equal number of nine year olds and ten year olds. There are 56 9-year olds and 42 Ten year olds. How many teams can be made? Show work.

## Tutor Answer

Brown University

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California Institute of Technology

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Carnegie Mellon University

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Columbia University

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Dartmouth University

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Emory University

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Harvard University

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Massachusetts Institute of Technology

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New York University

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Notre Dam University

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Oklahoma University

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Pennsylvania State University

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Princeton University

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Stanford University

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University of California

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Oxford University

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Yale University

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