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They can be. 5 and 1 are common factors of 10 and 20

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βˆ™ 10y ago
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βˆ™ 13y ago

2 and 5 are both prime numbers so the only common factor is 1.

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βˆ™ 12y ago

One is the common factor because 5 and 3 are both prime numbers.

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βˆ™ 10y ago

It is a factor of 45 ( 5*9)

For something to be a "common" factor, you`ll need at least two numbers ...

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βˆ™ 9y ago

Yes 1 is a common factor of all integers or whole numbers

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βˆ™ 7y ago

5 has two factors whose total is 6. For them to be common, they need to be compared to another set of factors.

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βˆ™ 9y ago

No, 5 is not a factor of 33.

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Q: Is 5 a common factor of 45?
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What is the highest common factor of 45 and 80?

The greatest common factor of 45 and 320 is 5.


What is the greatest common factor of 45 and 175?

The greatest common factor of 45 and 175 is 5.


What is the greatest common factor of 45 and 5?

The GCF of 5 and 45 is 5Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method: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 5 are 1 and 5.The factors of 45 are 1, 3, 5, 9, 15, and 45.The common factors are 1 and 5. Therefore, the greatest common factor is 5.The GCF/HCF of 5 and 45 is 5.


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5 5 x 9 = 45; 5 x 13 = 65 The greatest common factor of 65 and 45 is 5.


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What the greatest common factor of 5 and 45?

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What is the greatest common factor of 20 and 30 and 45?

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What is the Greatest common factor of 45 and 25?

The GCF of 25 and 45 is 5Definition: A factor is a divisor - a number that will evenly divide into another number. The greatest common factor of two or more numbers is the largest factor that the numbers have in common.Method: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 25 are 1, 5, and 25.The factors of 45 are 1, 3, 5, 9, 15, and 45.The common factors are 1 and 5. Therefore, the greatest common factor is 5. The highest common factor of 25 and 45 is 5.