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Q: What is factor tree of 189?

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189 63,3 21,3,3 7,3,3,3

189 63,3 21,3,3 7,3,3,3

1899 213 3 3 7

189 63, 3 21, 3, 3 7, 3, 3, 3

The 8 factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. 3 and 7 are prime.

7 is a prime factor of 189, because 7 X 27 = 189.

The Greatest Common Factor (GCF) is: 189

Since 27 is a factor of 189, it is automatically the GCF.

The greatest common factor of 189 and 195 is 3.

The greatest common factor of 81 and 189 is 27.

The Greatest Common Factor of 189 and 449 is 1.

The factors of 189 are 1 3 7 9 21 27 63 189 So the largest factor is 189. However, 189 is not a proper factor, even though it is a factor. The largest proper factor is 63. Now 63 is not prime, since is is clearly divisible by 3. The largest prime factor is 7

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