Posted by **Brandon** on Saturday, March 26, 2011 at 10:47pm.

If two numbers are relatively prime, what is their LCM? Explain the reasoning and give 2 examples supporting the answer.

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**drwls**, Saturday, March 26, 2011 at 10:59pm
Consider the definition of relatively prime numbers:

http://wiki.answers.com/Q/What_is_a_relative_prime_number

Since they have no common prome factors between them other than one, the Least Common Multiple must contain all the prime factors of both, making it the product of the two numbers.

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