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81

27,3

9,3,3

3,3,3,3

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8y ago
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11y ago

36

18,2

9,2,2

3,3,2,2

2 x 2 x 3 x 3 = 36

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Wiki User

12y ago

31 is already prime; no method required.

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Q: What is the prime factorization of 31 using tree method?
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