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The greatest common factor of 65 and 185 is 5.

The common factors of 65 and 185 are 1 and 5.

Definition: A factor is a divisor - a number that will evenly divide into another number. The common factors of two or more numbers are all the factors that the numbers have in common. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.

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 65 are 1, 5, 13, and 65.

The factors of 185 are 1, 5, 37, and 185.

The common factors are 1 and 5. Therefore, the greatest common factor is 5.

The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.

The prime factors of 65 are 5 and 13.

The prime factors of 185 are 5 and 37.

The prime factors in common are a single 5, so the greatest common factor is 5.

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14y ago
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14y ago

The factors are:
1,5,13,65
1,5,29,145
The greatest factor is 5.

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8y ago

The greatest common factor of 65 and 85 is 5

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13y ago

The greatest common factor of 65 and 169 is 13.

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9y ago

The greatest common factor of 180 and 65 is 5.

5 x 13 = 65
5 x 36 = 180

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7y ago

The GCF of 55 and 65 is 5.

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8y ago

The GCF of 65 and 180 is 5.

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11y ago

The HCF is: 5

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Q: What is the highest common factor of 65 and 145?
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Highest common factor of 65 and 145?

65 factors to [5 13] 145 factors to [5 29] common factors: [5] Answer is 5. ■


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The first step to find the gcf of 85 and 145 is to list the factors of each number. The factors of 85 are 1, 5, 17 and 85. The factors of 145 are 1, 5, 29 and 145. So, the Greatest Common Factor for these numbers is 5 because it divides all them without a remainder.


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