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Two different problems: A factor tree is a way to notate the process of finding the prime factorization of a given number. Once you have the prime factorizations of at least two numbers, you can combine them and find the LCM.
All composite numbers can be expressed as unique products of prime numbers. This is accomplished by dividing the original number and its factors by prime numbers until all the factors are prime. A factor tree can help you visualize this.
Example: 210
210 Divide by two.
105,2 Divide by three.
35,3,2 Divide by five.
7,5,3,2 Stop. All the factors are prime.
2 x 3 x 5 x 7 = 210
That's the prime factorization of 210.
Example: 30 and 42
Factor them.
2 x 3 x 5 = 30
2 x 3 x 7 = 42
Select the highest amount of each factor.
2 x 3 x 5 x 7 = 210, the LCM
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What is the LCm factor tree for 28 and 35?
28 14,2 7,2,2 35 5,7 2 x 2 x 5 x 7 = 140, the LCM
What are the prime factorization of 175 using a factor tree?
They are: 5*5*7 = 175
What is the LCM common factor of 24 60 and 72?
LCM(24, 60, 72) = 360.A common factor is 2.
How do you identify the gcf and LCM of a pair of numbers if one number is a factor of the other number?
The GCF is the factor, the LCM is the other one.
What is the factor of 3 using factor tree method for middle school?
3 is a prime number. Prime numbers don't have factor trees. The factors of 3 are 1 and 3.
What is the LCM with prime factorization using a factor tree using numbers 3 and 4?
That's a lot of extra work for this problem but here goes. 3 is already prime so it doesn't really have a factor tree or prime factorization. The prime factorization of 4 is 2 x 2 which looks like this in a factor tree.42,23 and 4 have no common prime factors, so the LCM is their product, 12
What happens if the slide ladder does not work for the GCF and LCM?
you have to use a factor tree
What is the factor tree for 160 the LCM and gcm to?
16080,240,2,220,2,2,2102,2,2,25,2,2,2,2,2You need another number to compare this one with to find a GCF or an LCM.
How do you work out the factor of 75 using a factor tree?
1,3,5,15,25,75
What is the prime factor of 655 using factor tree?
655 5,131
How do you find the LCM with a factor tree?
The factor tree finds the prime factorization. The prime factorization finds the LCM. Example: 30 and 42 Factor them. 30 15,2 5,3,2 42 21,2 7,3,2 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Select the highest amount of each factor. 2 x 3 x 5 x 7 = 210, the LCM
What do you find using a factor tree?
The prime factorization.
What is the LCM and GCF of 32 and 45 with the factor tree?
32=2x16=2x2x8=2x2x2x4=2x2x2x2x2 45=3x15=3x3x5 LCM=(2x2x2x2x2)x(3x3x5) =1440
What is the LCm factor tree for 28 and 35?
28 14,2 7,2,2 35 5,7 2 x 2 x 5 x 7 = 140, the LCM
How do you get the LCM of 120 and 360 using number patterns?
Since 360 is a multiple of 120, it is automatically the LCM.
What is the GCF of 24 and 28 using a factor tree?
4
What is a factor tree for 500 using 125 and 4?
It is the pie
