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How do you use the prime factorizations to find the LCM of 15 and 30?
Wiki User
∙ 11y ago
It's not really necessary. Since 30 is a multiple of 15, it's automatically the LCM of this problem but if you insist...
3 x 5 = 15
2 x 3 x 5 = 30
Combine the factors, eliminating duplicates.
Wiki User
∙ 11y ago
Wiki User
∙ 11y ago3 x 5 = 15
2 x 3 x 5 = 30
Combine the factors, eliminating duplicates.
2 x 3 x 5 = 30, the LCM
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How do you use the prime factorizations to find the LCM of a and b?
a and b have no common prime factors. Their LCM is their product.
What kind of numbers must always use with a prime factorization?
Only composite numbershave prime factorizations. Prime factorizations must consist of only prime numbers.
What is the LCM of 18 21 use prime factorizations?
2 x 3 x 3 = 18 3 x 7 = 21 2 x 3 x 3 x 7 = 126, the LCM
What is the LCM of 50 using prime factorization?
You need at least two numbers to find an LCM no matter what you use.
What method would you use to find the LCM of 17 and 57 and why?
I'd multiply them together because 17 is a prime number and 57 isn't a multiple of 17 so the LCM has to be their product.
How do you use the prime factorizations to find the LCM of a and b?
a and b have no common prime factors. Their LCM is their product.
How do you simplify fractions using the factor tree?
To simplify fractions, it is necessary to divide the numerator and the denominator by their GCF. You can find their GCF by comparing their prime factorizations. You can find their prime factorizations through the use of factor trees.
How do you use prime factors in everyday life?
Prime factors are part of prime factorizations. Prime factorizations help in finding the GCF and LCM of integers. Finding the GCF helps in reducing fractions. Finding the LCM helps in adding and subtracting unlike fractions. Carpenters do this. Chefs do this. It's entirely possible you will have no need of this, but it's better to know something and not need to use it then not know something you need to use. If you have children of your own, you can help them with their math homework.
What kind of numbers must always use with a prime factorization?
Only composite numbershave prime factorizations. Prime factorizations must consist of only prime numbers.
How do you use the prime factorizations to find the LCM of 25 and 30?
5 x 5 = 25 2 x 3 x 5 = 30 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 5 = 150, the LCM.
What are the prime factorizations of 5184 using exponents?
(a) what is the prime factorization of 5184 using exponents? (b)Use the answer (a) to find the square root of 5184
What is the use of prime number?
Prime numbers help you to find the LCM and the GCF.
How do you use prime factorizations to find the LCM of two numbers examples?
Example: 30 and 42 2 x 3 x 5 = 30 2 x 3 x 7 = 42 2 x 3 x 5 x 7 = 210, the LCM
What is the LCM of 18 21 use prime factorizations?
2 x 3 x 3 = 18 3 x 7 = 21 2 x 3 x 3 x 7 = 126, the LCM
How do you use prime factorizations to find the LCM of two?
Example: 30 and 42 2 x 3 x 5 = 30 2 x 3 x 7 = 42 Combine the factors, eliminating duplicates. 2 x 3 x 5 x 7 = 210, the LCM
How do you find GCF and LCM?
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.
What is a disadvantage of using the prime factorization method to find the LCM?
speed you can just use your brain to find the LCM faster, sometimes.
