
Prime Factorization and GCF/LCM Concepts
Interactive Video
•
Mathematics, Science
•
5th - 8th Grade
•
Practice Problem
•
Hard
Ethan Morris
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 number that both numbers divide evenly into
The largest number that divides both numbers evenly
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a step in finding the LCM using prime factorization?
Add the prime factors of both numbers
Subtract the prime factors of both numbers
Create factor trees for each number
Multiply the prime factors of both numbers
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the LCM of 6 and 8 using prime factorization?
30
12
18
24
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Greatest Common Factor (GCF) of two numbers?
The sum of the two numbers
The smallest number that both numbers divide evenly into
The largest number that divides both numbers evenly
The product of the two numbers
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a step in finding the GCF using prime factorization?
Create factor trees for each number
Multiply the prime factors of both numbers
Add the prime factors of both numbers
Divide the prime factors of both numbers
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the GCF of 6 and 8 using prime factorization?
1
2
3
4
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
When creating a prime factorization chart, what should you do if you have a vertical pair of factors?
Ignore the pair
Multiply the pair
Use only one factor
Use both factors
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