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9 is not prime, so it is not a prime factor of 72, great or otherwise.

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10y ago
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10y ago

No, neither 1 nor 9 is prime.

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Q: Is 9 the greatest prime factor of 72?
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What is the greatest common factor of 27 and 72?

The greatest common factor (GCF) of 27 and 72 is 9. The common factors of 27 and 72 are 1, 3, and 9. Methods: One way to determine the common factors and greatest common factor is to find all the factors of the numbers and compare them. The factors of 27 are 1, 3, 9, and 27. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The common factors are 1, 3, and 9. Therefore, the greatest common factor is 9. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 27 are 3, 3, and 3. The prime factors of 72 are 2, 2, 2, 3, and 3. The prime factors in common are 3 and 3, so the greatest common factor is 3 x 3 = 9.


What is the greatest common factor of 27 and 36 and 72?

The GCF of 27, 36 and 72 is 9.The GCF is 9.


What is the highest common factor of 45 and 72?

The Greatest Common Factor of 45 and 72 is 9.3 x 3 = 9


What is the greatest prime factor of 24 and 32?

The greatest prime factor they have in common is 2.


What is the greatest common factor of 72 and nine?

Since 9 is a factor of 72, it is automatically the GCF.


What is 72 and 81 in the greatest common factor?

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What is the greatest common factor with 72 and 81?

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What is the greatest common factor of 9 and 72?

Since 9 is a factor of 72, it's automatically the GCF.The gcf of 9 and 72 is 9


What is the greatest common factor of 9 18 and 72?

The GCF is 9.


What is the greatest common factor 72 of and 45?

The greatest common factor of 45 and 72 is 9. 45- 3 times 3 times 5 75- 2 times 2 times 2 times 3 times 3 3 times 3 = 9, the GCF


What is the greatest common factor of 27 90 135 and 72?

The greatest common factor (GCF) is: 9.


What is the greatest common factor of 36 45 and 72?

The GCF of 36, 45, and 72 is 9.