Find the Least Common Multiple (LCM) of each of the following. Type your answer in the space provided. (2pts each)(21 - 22) 15 and 25 =
Question
Find the Least Common Multiple (LCM) of each of the following.
Type your answer in the space provided.
(2pts each)
(21 - 22)
15 and 25 =
Solution
To find the Least Common Multiple (LCM) of 15 and 25, follow these steps:
-
First, list the prime factors of each number.
- The prime factors of 15 are 3 and 5.
- The prime factors of 25 are 5 and 5.
-
Next, for each prime factor, take the highest count of this factor from all numbers.
- The highest count of 3 from both numbers is 1 (from 15).
- The highest count of 5 from both numbers is 2 (from 25).
-
Then, multiply each prime factor the greatest number of times it occurs in either number.
- Multiply 3 (1 time) and 5 (2 times) together.
-
The result is the LCM.
- So, 355 = 75.
Therefore, the Least Common Multiple (LCM) of 15 and 25 is 75.
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