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How do you find the least common multiple using prime factorization with factor trees?
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
What are the common factors for 45 81 and 63?
Use the following factor trees to determine the answer355, 7and637, 97, 3, 37 is the common factor of 35 and 63
Do factor trees always work for determining the greatest common factors?
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 do prime factorization of 35 and 14 in greatest common factor?
Use factor trees.355,7142,75 x 7 = 352 x 7 = 14Select the common factor.The GCF is 7.
What is the least common multiple of 40 60 and 80?
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.
