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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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What is the largest perfect cube factor of 189?
To find the largest perfect cube factor of 189, we first need to factor it into its prime components. The prime factorization of 189 is (3^3 \times 7^1). The largest perfect cube that can be formed from these factors is (3^3), which equals 27. Therefore, the largest perfect cube factor of 189 is 27.
What is the greatest common factor of 27 and 189?
Since 27 is a factor of 189, it is automatically the GCF.
What is the greatest common factor of 66 and 189?
The GCF of 66 and 189 is 3.
What are the common factors of 189?
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
What is the greatest common factor of 189 297 and 351?
The GCF is 27.
