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Short answer: There are none.
There is neither a greatest common factor nor common factors of a single number, such as 30, because there cannot be any form of common factor without two or more numbers to compare. Common factors are factors that the numbers being compared have in common. The greatest common factor is the largest factor that all the numbers being compared have in common. Thus, since there are not two or more numbers to compare, there are neither common factors nor a greatest common factor.
The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.
Examples:
The common factors of 30 and 32 are 1 and 2; the greatest common factor is 2.
The common factors of 30 and 45 are 1, 3, 5, and 15; the greatest common factor is 15.
The common factors of 30 and 57 are 1 and 3; the greatest common factor is 3.
The common factors of 30 and 65 are 1 and 5; the greatest common factor is 5.
The common factors of 30 and 72 are 1, 2, 3, and 6; the greatest common factor is 6.
The common factors of 30 and 100 are 1, 2, 5, and 10; the greatest common factor is 10.
The common factors of 30 and 180 are 1, 2, 3, 5, 6, 10, 15, and 30; the greatest common factor is 30.
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What is the greatest common factor of 30 and 64?
The GCF of 30 and 64 is 2. The factors of 30 are 1,2,3,10,15, and 30. The factors of 64 are 1,2,4,8,16,32, and 64. The greatest common factor of 30 and 64 is 2.
What are the greatest common factors of 20 30 40?
The greatest common factor is 10.
What is the greatest common factor of 30 33 and 87?
The difference between 30 and 33 is 3, so the greatest common factor cannot be larger than 3. Since 3 divides evenly into 30, 33, and 87, the greatest common factor is 3. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 33 are 1, 3, 11, and 33. The factors of 87 are 1, 3, 29, and 87. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 30 are 2, 3, and 5. The prime factors of 33 are 3 and 11. The prime factors of 87 are 3 and 29. The prime factors in common are a single 3, so the greatest common factor is 3. The difference between 30 and 33 is 3, so the greatest common factor cannot be larger than 3. Since 3 divides evenly into 30, 33, and 87, the greatest common factor is 3. Another way to determine the greatest common factor is to find all the factors of the numbers and compare them. The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30. The factors of 33 are 1, 3, 11, and 33. The factors of 87 are 1, 3, 29, and 87. The common factors are 1 and 3. Therefore, the greatest common factor is 3. The greatest common factor can also be calculated by identifying the common prime factors and multiplying them together. The prime factors of 30 are 2, 3, and 5. The prime factors of 33 are 3 and 11. The prime factors of 87 are 3 and 29. The prime factors in common are a single 3, so the greatest common factor is 3.
What is the greatest common factor of 22 and 30?
Answer: 2Definition: 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 22 are 1, 2, 11, and 22.The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.The common factors are 1 and 2. Therefore, the greatest common factor is 2.
What is the greatest common factor of 14 and 30?
Answer: 2Definition: 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 14 are 1, 2, 7, and 14.The factors of 30 are 1, 2, 3, 5, 6, 10, 15, and 30.The common factors are 1 and 2. Therefore, the greatest common factor is 2.The GCF is 2.
