
Understanding Least Common Multiple (LCM)
Interactive Video
•
Mathematics, Science
•
5th - 8th Grade
•
Practice Problem
•
Hard
Liam Anderson
FREE Resource
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9 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the lowest common multiple (LCM) of a set of numbers?
The largest number that divides all the numbers
The smallest number that all the numbers divide into evenly
The sum of all the numbers
The product of all the numbers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which method is used in the video to find the LCM?
Subtraction
Long division
Prime factorization
Addition
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the prime factors of 8?
2, 2, 2
3, 3, 3
2, 3, 5
5, 5, 5
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the prime factors of 12?
5, 5, 5
2, 2, 3
2, 3, 5
3, 3, 3
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What are the prime factors of 15?
5, 5, 5
2, 3, 5
3, 5
2, 2, 2
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is a prime factorization chart useful?
It is used for division
It eliminates errors in finding the LCM
It helps in adding numbers
It helps in subtracting numbers
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the LCM using the prime factorization chart?
Multiply the highest power of each prime number
Subtract the smallest prime number
Divide by the largest prime number
Add all the prime numbers
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