
Understanding Least Common Multiple (LCM)

Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Hard

Sophia Harris
FREE Resource
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the least common multiple (LCM) of two numbers?
The difference between the two numbers
The sum of the two numbers
The smallest positive number that is a multiple of both numbers
The largest number that divides both numbers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When listing multiples to find the LCM of 4 and 6, which number is the LCM?
6
12
24
8
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is listing multiples not practical for large numbers?
It only works for even numbers
It requires a calculator
It is too time-consuming
It is not accurate
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the LCM using prime factorization?
List all multiples
Divide the numbers
Add the numbers
Find the prime factors of each number
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the prime factorization method, how do you determine the number of times a factor should be included in the LCM?
By multiplying the occurrences in both numbers
By taking the maximum number of occurrences in either number
By taking the minimum number of occurrences in either number
By adding the occurrences in both numbers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the LCM of 24 and 30 using prime factorization?
120
150
90
60
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When variables are included, what remains unchanged in the LCM finding process?
The need to list all multiples
The use of prime factorization
The addition of all factors
The subtraction of factors
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