Greatest Common Factor and Prime Factorization
Interactive Video
•
Mathematics
•
6th - 8th Grade
•
Practice Problem
•
Hard
Thomas White
FREE Resource
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16 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the greatest common factor of two numbers?
The smallest number that is a multiple of both numbers
The difference between the two numbers
The largest number that is a factor of both numbers
The sum of the two numbers
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is the greatest common factor of 10 and 15?
5
10
3
2
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the greatest common factor of 18 and 24?
9
6
12
3
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Why is it easier to find the greatest common factor for smaller numbers?
They have fewer factors to list and compare
They are always prime numbers
They have more factors to choose from
They are closer to zero
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is a challenge when finding the greatest common factor for larger numbers?
They are always even numbers
They are always odd numbers
They have too many factors to list easily
They have no factors
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in using prime factorization to find the greatest common factor?
Add the numbers together
List all factors of the numbers
Break down each number into its prime factors
Multiply the numbers together
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
In the prime factorization method, what do you do after finding the prime factors?
Subtract the prime factors from each other
Identify common prime factors and multiply them
Add all the prime factors together
Multiply all the prime factors together
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