Find the least common multiple of 3 and 5. (1 point)
30
15
10
60
The least common multiple of 3 and 5 is 15.
To find the least common multiple (LCM) of 3 and 5, you can list the multiples of both numbers until you find the least common multiple.
Let's list the multiples of 3:
3, 6, 9, 12, 15, 18, 21, 24, 27, 30, 33, 36, ...
Now let's list the multiples of 5:
5, 10, 15, 20, 25, 30, 35, 40, 45, 50, 55, 60, ...
From the lists above, you can see that the least common multiple of 3 and 5 is 15.
Therefore, the correct answer is 15.
To find the least common multiple (LCM) of two numbers, you need to determine the smallest number that is evenly divisible by both numbers. Here's how to find the LCM of 3 and 5:
1. List the multiples of each number:
- Multiples of 3: 3, 6, 9, 12, 15, 18, 21, 24, 27, 30, ...
- Multiples of 5: 5, 10, 15, 20, 25, 30, 35, 40, 45, 50, ...
2. Identify the smallest number that appears in both lists. In this case, the number 15 is the smallest number that is a multiple of both 3 and 5.
Therefore, the least common multiple of 3 and 5 is 15.
So the correct answer is: 15