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The greatest common factor of several numbers cannot be larger than the greatest common factor of any pair of the numbers. If you realize that the greatest common factor of 3 and 5 is 1, the greatest common factor of all the numbers must be 1.

Another way to determine the greatest common factor is to find all the factors of the numbers and compare them.

The factors of 3 are 1 and 3.

The factors of 5 are 1 and 5.

The factors of 8 are 1, 2, 4, and 8.

The factors of 10 are 1, 2, 5, and 10.

The only common factor is 1. Therefore, the greatest common factor is 1.

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

The prime factor of 3 is 3.

The prime factor of 5 is 5.

The prime factors of 8 are 2, 2, and 2.

The prime factors of 10 are 2 and 5.

There are no prime factors in common, so the greatest common factor is 1.

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The GCF of 3, 6, and 10 is 1. Since 3 is prime, its only factors are 1 and 3. Of those, only 1 is a factor of the other two numbers in the set.

While 3 and 6 share a prime factor (3), and 6 and 10 share a common factor (2), there is no prime factor common to all three numbers.

(The LCM of the three numbers is 30.)

The LCM of 3, 4, 5, 8, and 10 is: 120

The GCF of 3, 5, and 8 is 1.

It is: 1

It is: 1

It is: 2

Q: What is the greatest common factor of 3 5 and 8?

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The greatest common factor of 3, 5, and 12 is 1.

1 is their greatest common factor.

The greatest common denominator is infinite.

The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.

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.

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The greatest common factor of 3 , 5 , 28 = 1

The greatest common factor of 3, 5, and 12 is 1.

1 is their greatest common factor.

The Greatest Common Factor (GCF) is: 1

The only factor they have in common is 1. It has to be the greatest.

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

25 = 5*5 35 = 5*7 45 = 3*3*5 So the greatest common factor is 5.

You do not. To have a greatest common factor, you need two or more numbers. A common factor is a factor that two or more number have in common. However, the prime factorization of all the numbers will help you find the greatest common factor. The greatest common factor will be the prime factors they have in common multiplied together. Example: The prime factors of 45 are 3, 3, and 5. The prime factors of 60 are 2, 2, 3, and 5. The common prime factors are 3 and 5, so the greatest common factor is 3 x 5 = 15.

225 15 15 3 5 3 5 The factors of 225 are 3, 3, 5, and 5. A common factor is one common to each of two or more numbers. There is not greatest common factor when only one number is given.

The greatest common denominator is infinite.

The LCM or least common multiple of 3 and 5 is 15.The GCF or greatest common factor of 3 and 5 is 1.

Since 15 is a factor of 75, and 15 is its own largest factor, the greatest common factor must be 15.Another way to determine the greatest common factor is to find all the factors of the numbers and compare them.The factors of 15 are 1, 3, 5, and 15.The factors of 75 are 1, 3, 5, 15, 25, and 75.The common factors are 1, 3, 5, and 15. Therefore, the greatest common factor is 15.The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together.The prime factors of 15 are 3 and 5.The prime factors of 75 are 3, 5, and 5.The prime factors in common are 3 and 5, so the greatest common factor is 3 x 5 = 15.It is 15