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The LCM of two numbers multiplied by their GCF will equal the product of the original numbers. If you know the LCM, divide it into the product. The result will be the GCF.

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Q: How do you find GCF knowing LCM?
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Related questions

How can knowing the gcf and lcm help you add subtract and multiply fractions?

Knowing the LCM of the denominators will help you to find a least common denominator of unlike fractions, which will allow you to add and subtract them successfully. Knowing the GCF and LCM will not help you in multiplying them, but knowing the GCF of the numerator and denominator of a fraction will help you reduce it if necessary.


How can knowing the GCF and LCM help you when you add subtract and multiply fraction?

Knowing the LCM of the denominators of unlike fractions will help you find the least common denominator, a necessary step in adding and subtracting them. Knowing the GCF of a numerator and denominator will tell you if the fraction can be reduced.


How can knowing the GCF and LCM help you when you add subtract and multiply fractions?

Knowing the LCM will help when adding or subtracting unlike fractions. By finding the LCM of the denominators, (called the lowest common denominator) you can convert unlike to like fractions and proceed with the adding or subtracting. Knowing the GCF helps reduce a fraction. By finding the GCF of the numerator and the denominator and dividing both of them by it, you can reduce a fraction to its lowest terms (simplest form). If the GCF is 1, the fraction is in its simplest form. You can successfully multiply fractions without knowing the GCF or LCM.


Could you divide the product by the GCF to find the LCM?

Yes, you could divide the product by the GCF to find the LCM


Find the gcf and LCM of 4AcubeBsquare12AsquareB?

The GCF is 4a2b The LCM is 12a3b2


What are the similarities between LCM and GCF?

For both GCF and LCM you find something in common.


What is the LCM and GCF of 55?

You need at least two numbers to find either an LCM or a GCF.


Why is greatest common factor in math helpful?

Finding the GCF helps to reduce fractions to their simplest form. Knowing the GCF can help to find the LCM, which assists in adding and subtracting fractions.


When is it useful to find the LCM or gcf?

It is useful to find the LCM when you want to add and subtract fractions. It is useful to find the GCF when you want to reduce fractions.


What is the least LCM and GCF of 378?

You need at least two numbers to find either a GCF or an LCM.


What is the GCF and the LCM of 1570?

To find the GCF and LCM at least two or more numbers must be given


What is the LCM and GCF of 486472?

To find the LCM and GCF of numbers at least two or more numbers are neeeded.


How do you GCF and LCM numbers 30?

You need at least two numbers to find either a GCF or an 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.


How do you find the LCM using GCF?

The GCF of two numbers multiplied by their LCM will equal the product of the original numbers. If you know the GCF, divide it into the product of the two. The result will be the LCM. If the GCF of two numbers is 1, the LCM is their product.


How do you find the other number when the one number is given with the LCM and the GCF?

The product of the original numbers is equal to the product of the GCF and LCM. Divide the product of the LCM and GCF by the one number. The answer will be the other.


What is a number that has 360 as a GCF and 12 as a LCM?

You need at least two numbers to find a GCF or an LCM and the LCM of those numbers can never be less than the GCF. 12 and 360 have a GCF of 12 and an LCM of 360. So do 60 and 72.


How do you find two numbers if HCF and LCM are known?

The product of the GCF and the LCM of two numbers is equal to the product of the original two numbers. Multiply the GCF and the LCM. The original two numbers will be another factor pair of that total. Find the factor pair that has that GCF and LCM.


How do you use continuous division method to find the GCF and LCM of 35 and 14?

The GCF is 7.The LCM is 70.


How do i Compare and contrast GCF and LCM?

the gcf is when you try to find the greatest common number between a set of numbers and lcm is when you try to find the lowest multiple out of a set of numbers.


How are gcf LCM and prime factorization related?

You can find the GCF and/or the LCM of a set of numbers by comparing the prime factorizations of the individual members of the set.


How is GCF and LCM similar?

GCF and LCM are similar because you need to find the prime factorizations of the two numbers in both cases to get the result.


What is the GCF and LCM of 3123 to the power of one hundred thirty one?

To answer the question two or more numbers are needed to find their GCF and LCM


How do you make up a problem to find the lcm of two numbers of one to find gcf of two numbers?

You can find the GCF of two numbers by dividing their product by their LCM. The LCM of 30 and 42 is 210. What is their GCF? 30 x 42 = 1260 divided by 210 = 6 The GCF of 30 and 42 is 6.


How do you find the method to find the GCF and LCM of 110and 22?

22 is a factor of 110. 110 is a multiple of 22. That means that 22 is the GCF and 110 is the LCM of those two numbers.