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Q: What are the two methods to find the LCM?

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Avoidance. It is impossible to find the LCM of a single number. You need at least two.

You need at least two numbers to find an LCM.

Two or more numbers are normally needed to find the LCM

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

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Avoidance. It is impossible to find the LCM of a single number. You need at least two.

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.

Two or more numbers are needed to find the LCM

You need at least two numbers to find an LCM.

You need at least two numbers to find an LCM.Two or more numbers are needed to find the Lcm

Two or more numbers are needed to find the LCM

Two or more numbers are normally needed to find the LCM

Two or more numbers are normally needed to find the LCM

Two or more numbers are normally needed to find the LCM

If you use methods based on prime factors, it is the same whether you have 2, 3, or more numbers: find all the factors that occur in any of your numbers. If you use a method based on Euclid's Algorithm (that is, lcm(a, b) = a x b / gcf(a, b), where you find the gcf with Euclid's Algorithm), then you can find the lcm for two numbers at a time. For example, to get the lcm of four numbers, find the lcm of the first two, then the lcm of the result and the third number, than the lcm of the result and the fourth number.

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