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Since 5 is a Prime number, the only possible common factors are 1 and 5. Because 18 is not divisible by 5, the only common factor, and thus the greatest common factor, is 1.

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Q: What is the greatest common factor of 5 and 18?
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What is the greatest common factor of 18 and 75?

The greatest Common Factor (GCF) of 18 and 75 is 3.


What is the greatest common factor of 18 and 50?

One way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 18 are 1, 2, 3, 6, 9, and 18. The factors of 50 are 1, 2, 5, 10, 25, and 50. The common factors are 1 and 2, so the greatest common factor is 2. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 18 are 2, 3, and 3. The prime factors of 50 are 2, 5, and 5. The prime factors in common are a single 2, so the greatest common factor is 2.


What is the greatest common factor of 10X and 25?

The GCF is 5.


What is the greatest common factor of 5 and 5?

The greatest common factor of 5 and 5 is 5.


What is the greatest common factor of 18 and 35?

The factors of 18 are 1, 2, 3, 6, 9, and 18.The factors of 35 are 1, 5, 7, and 35.The only common factor is 1, so the greatest common factor is 1. This means they are relatively prime.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 18 are 2, 3, and 3.The prime factors of 35 are 5 and 7.There are no common prime factors, therefore they are relatively prime, which means the greatest common factor is 1.18 = 2 x 3 x 3, 35 = 5 x 7. There is no common factor other than 11 - they are relatively primeThe GCF is 1.The GCF is 1.The GCF is 1.

Related questions

What is the greatest common factor of 90 and 216?

The greatest common factor of 90 and 216 is 18 90 = 2 * 32 * 5 216 = 23 * 33 greatest common factor = 2 * 32 = 2 * 9 = 18 90 / 18 = 5 216 / 18 = 12 because the greatest common factor of these is 1.


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The factors of 5 are: 1, and 5The factors of 10 are: 1, 5, and 10The factors common to 5 and 10 are: 1, and 5The greatest common factor is 5.


What is greatest common factor of 15 25 and 30?

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The greatest common factor (GCF) is 5.


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