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First, find the prime factorization. Use a factor tree.

189

63,3

21,3,3

7,3,3,3

All the other factors will be combinations of these. There are eight altogether.

You know that 1, 3 and 7 are factors. The rules of divisibility tells you that 9 is as well. Dividing them into 189 gives you the rest.

1, 3, 7, 9, 21, 27, 63, 189

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11y ago

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Divide 189 by 1, 3, 7 and 9

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9y ago
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Q: How do you find the factor for 189?
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