Example: 30 and 42 30 15,2 5,3,2 42 21,2 7,3,2 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM
Use the following factor trees to determine the answer355, 7and637, 97, 3, 37 is the common factor of 35 and 63
If you construct them correctly, factor trees always work to determine the prime factorization of a number. Once you compare the prime factorizations of two or more numbers, it is relatively easy to find the greatest common factor of them from there.
Use factor trees.355,7142,75 x 7 = 352 x 7 = 14Select the common factor.The GCF is 7.
To find the least common multiple (LCM) of 40, 60, and 80, we first need to break down each number into its prime factors. The prime factorization of 40 is 2^3 * 5, 60 is 2^2 * 3 * 5, and 80 is 2^4 * 5. To find the LCM, we take the highest power of each prime factor that appears in any of the numbers: 2^4 * 3 * 5 = 240. Therefore, the least common multiple of 40, 60, and 80 is 240.
it can help you find answers using factor trees
You need at least two factor trees to find a GCF.
You can, but it's not necessary. The least common factor of any set of integers is 1.
Trees aren't necessary. The greatest common multiple of any set of numbers is always infinite.
Least common multiple is computed by finding both factor trees and using the greatest power of all common factors factors or 84 are 2,2,3,7 so, [2^2 * 3 * 7] factors of 96 are 2,2,2,2,2,3 so [2^5 * 3] LCM is 2^5 * 3 * 7 = 672 Always check. Divide the answer by the original numbers and check if the quotients are relatively prime. 672 / 84 = 8 672 / 96 = 7 8 and 7 have no factors in common, so this is the answer. If they did have a common factor, you would have to divide by that factor to get the answer, because you had missed one in your factor tree.
Example: 30 and 42 30 15,2 5,3,2 42 21,2 7,3,2 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM
Find out about factors and factor trees.
To find the GCF and the LCM you have to first at least try to use prime factorization. So use factor trees. Or for the LCM find th least common multiples of the number.
no because there are multiple ways to do factor trees until u get to all prime numbers
Use the following factor trees to determine the answer355, 7and637, 97, 3, 37 is the common factor of 35 and 63
If you construct them correctly, factor trees always work to determine the prime factorization of a number. Once you compare the prime factorizations of two or more numbers, it is relatively easy to find the greatest common factor of them from there.
How do you find the first three common multiples of sets of numbers