find the lcm 24,40,80,120
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Answer: 240
Explanation:
Prime Factorization of 24 is:
2 x 2 x 2 x 3 => 23 x 31
Prime Factorization of 40 is:
2 x 2 x 2 x 5 => 23 x 51
Prime Factorization of 80 is:
2 x 2 x 2 x 2 x 5 => 24 x 51
Prime Factorization of 120 is:
2 x 2 x 2 x 3 x 5 => 23 x 31 x 51
For each prime factor, find where it occurs most often as a factor and write it that many times in a new list.
The new superset list is
2, 2, 2, 2, 3, 5
Multiply these factors together to find the LCM.
LCM = 2 x 2 x 2 x 2 x 3 x 5 = 240
In exponential form:
LCM = 24 x 31 x 51 = 240
LCM = 240
Therefore,
LCM(24, 40, 80, 120) = 240
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