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Explain how to take lcm |
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Answer» Answer: This is an ideal method for larger numbers.This method is factoring both numbers down to the prime numbers that are multiplied to create that number as a product. For Example :- Let's say you're LOOKING for the least common multiple of 20 and 42. Here's how you would FACTOR them 20 = 2 X 2 x 5 and 42 = 2 x 3 x 7 If the number just occurs in one number, then it has one occurrence. Here is a list of the most occurrences of each prime number from the previous example 2 → 2 times 3 → 1 TIME 5 → 1 time 7 → 1 time Since 2 occurs twice, you'll have to multiply it twice. Here's what you should do to find the LCM: 2 x 2 x 3 x 5 x 7 = 420. Video of how to find LCM |
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