The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
The factors of 21 are 1, 3, 7, and 21. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors they have in common are 1 and 3, the largest of which is 3, so 3 is the greatest common factor. Or, you can calculate the greatest common factor by looking at the prime factors. The prime factors of 21 are 3 and 7. The prime factors of 36 are 2, 2, 3, and 3. The prime factors they have in common are a single 3, so 3 is the greatest common factor.
Factors are numbers you can multiply together to get another number. Therefore, all the factors of 21 are as follows: 1,3,7,21.
The greatest common factor of 12 21 and 30 is 3The factors of 12 are: 1, 2, 3, 4, 6, 12The factors of 21 are: 1, 3, 7, 21The factors of 30 are: 1, 2, 3, 5, 6, 10, 15, 30The common factors are: 1, 3The Greatest Common Factor (GCF) is: 3
The factors of 21 are 1, 3, 7, and 21 which means that 21 is composite.
The factors of 42 are: 1, 2, 3, 6, 7, 14, 21, 42
Since 21 is a factor of 84, it is automatically the GCF and all of its factors are common.
The common factors of 21 and 42 are 3, 7 and 21. The greatest common factor (GCF) is 21.
You need at least two numbers to find a GCF.For example:The GCF of 21 and 9 = 3The GCF of 21 and 28 = 7
1, 2, 3, 6, 7, 14, 21, 42
least to greatest: 0.03%, 21%, 78%
The GCF of 21 and 45 is 3. One way to determine the 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 45 are 1, 3, 5, 9, 15, and 45. 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 21 are 3 and 7. The prime factors of 45 are 3, 3, and 5. The prime factors in common are a single 3, so the greatest common factor is 3.
The factors of 14 are: 1, 2, 7, 14.The factors of 21 are: 1, 3, 7, 21.The Greatest Common Factor (GCF) is: 7.
The greatest common factor of 63 and 147 is 21.
The factors of 21 are 1, 3, 7, and 21. For them to be common, they need to be compared to another set of factors.
They are 1 and 3 .Note: Those are also the least common factors of 9, 21, and 54 .
The factors of 16 are 1, 2, 4, 8, and 16. The factors of 21 are 1, 3, 7, and 21. The only common factor is 1; they are relatively prime. The least (or lowest) common factor is 1. The greatest (or highest) common factor is 1.