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21 can not be divided by 2, ergo it can not be a common factor with 72

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Q: Is 2 a common factor of 21 and 72?
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What is a common factor for 24 and 72?

2 is a common factor of 24 and 72.


What is the greatest common factor of 21 and 72?

The GCF of 21 and 72 is 3Definition: 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 21 are 1, 3, 7, and 21.The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72.The common factors are 1 and 3. Therefore, the greatest common factor is 3.By inspection:21 is divisible by 3 and 7 only 72 is divisible by 2, 3, 4, 6, 12, 18, 26, 36The greatest common factor is 3


What are the common factors and greatest common factor of 72?

Oh honey, 72 is like a puzzle piece that's been put together a million times. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The greatest common factor is the biggest number that can divide both 72 and another number without leaving a remainder. So, the greatest common factor of 72 is 72 itself.


What is the common factor of 72 and 12?

Since 12 is a factor of 72, all of its factors are common.


What is the greatest common factor of 210?

The greatest common factor (GCF) is often also called the greatest common divisor (GCD) or highest common factor (HCF). Keep in mind that these different terms all refer to the same thing: the largest integer which evenly divides two or more numbers.The greatest common factor of 72 and 210 is 6


What is the greatest common factor of 42 and 72?

The greatest common factor of 42 and 72 is 6 Gcf stands for Greatest Common Factor, The gcf of 42 and 72 is the largest positive number that is a factor of both 42 and 72. The positive factors of 42 (the integral divisors of 42) are: 1, 2, 3, 6, 7, 14, 21, and 42. The positive factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 36, and 72. Therefore the gcf of 42 and 72 is 6, as the greatest factor that 42 and 72 have in common.


What is the common factor of 72 and 86?

The common factors of 72 and 86 are: 1 and 2.


What is the greatest common factor of 16 and 72?

The greatest common factor of 16 and 72 is 8.8168,24,2,22,2,2,27236,218,2,29,2,2,23,3,2,2,22 x 2 x 2 = 8, the GCFThe greatest common factor of 16 and 72 is 8.The GCF is 8.


What is the greatest common factor of 72 and 98?

The GCF of 72 and 98 is 2.


What is the greatest common factor of 42 72 and 84?

To find the greatest common factor (GCF) of 42, 72, and 84, you first need to find the factors of each number. The factors of 42 are 1, 2, 3, 6, 7, 14, 21, and 42. The factors of 72 are 1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, and 72. The factors of 84 are 1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, and 84. The GCF of 42, 72, and 84 is the largest number that appears in the factors of all three numbers, which in this case is 6.


What is the greatest common factor of 142 and 72?

72 is factored into: 2*2*2*3*3 142 factored into: 2*71 Their greatest common factor is just 2


What is the greatest common factor of 14 and 72?

The GCF of 14 and 72 is 2