one method is simply writing out all the factors of both 48 and 84:
48's factors: 1,48,2,24,4,12,16,3,8,6
84's factors:1,84,2,42,3,28,4,21,6,14,7,12
therefore by comparison greatest factor is 12.
The only other way i know is by reducing to prime factor form:
48 is 2^4 x 3 and 84 is 2^2x3x7
You can then see the highest common factor will be by using 2^2 x 3 which is common in the prime factors of 48 ad 84 (2^2 x 3 = 12)
i dont know
i dont have friends
figure it out urself
By finding the factors in both numbers and then finding the one that is greatest in common. For example the G.C.F for 45 and 36 is 9.
For the purpose of reducing fractions to their lowest terms.
Divide both the numeration and the denominator by their greatest common factor.
The Greatest Common Factor (GCF) is: 1
The Greatest Common Factor (GCF) is: 6
Finding the greatest common factor helps when you are reducing fractions.
Hug
the smaller number
You do not necessarily need the common prime factors when finding the greatest common factor, but with large numbers or numbers for which you cannot easily determine all the factors, using prime factorization to determine the greatest common factor is the easiest method. The greatest common factor can then be determined by multiplying the common prime factors together. For example, when trying to find the greatest common factor of 2144 and 5672, finding all their possible factors to compare could be difficult. So, it is easier to find their prime factors, determine the prime factors they have in common, and then multiply the common prime factors to get the greatest common factor. For descriptions and examples of finding the greatest common factor, see the "Related Questions" links below.
No.
No, 8 is not a factor of 4.
By finding the factors in both numbers and then finding the one that is greatest in common. For example the G.C.F for 45 and 36 is 9.
What makes a greatest common factor "common" is comparing at least two terms and finding something common between them.
Yes, the greatest common factor is less than or equal to the smallest coefficient. For example, the greatest common factor of 38 and 8 is 2.
Since 2 is a factor of 8, it is automatically the GCF of the two.
Short answer: There are none. There is neither a greatest common factor nor common factors of a single number, such as ??, 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. Examples: The common factors of 1 and 3 are only 1; the greatest common factor is 1. The common factors of 1 and 111 are only 1; the greatest common factor is 1. Note: Since the only factor of 1 is 1, when finding the greatest common factor of 1 and another number, the only possible common factor and greatest common factor is 1.
Neither 16 nor 36 have a greatest common factor. There is neither a greatest common factor nor common factors of a single number, such as 16, 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. However, there is a greatest common factor of the pair of 16 and 36. It is 4. See the related question for an explanation on finding the greatest common factor of 16 and 36.