
Finding GCF and LCM with Factor Trees

Interactive Video
•
Mathematics
•
6th - 10th Grade
•
Hard
Standards-aligned

Sophia Harris
FREE Resource
Standards-aligned
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the first step in finding the Greatest Common Factor (GCF) using a factor tree?
Multiply the numbers together
List all the prime factors of each number
Find the least common multiple
Add the numbers together
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a prime factor of 10?
6
2
4
8
Tags
CCSS.4.OA.B.4
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Greatest Common Factor (GCF) of 10 and 25?
10
5
2
25
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
How do you find the Least Common Multiple (LCM) using a factor tree?
Divide the larger number by the smaller number
Subtract the smaller number from the larger number
Multiply one number by the factors in the box of the other number
Add the numbers together
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Least Common Multiple (LCM) of 10 and 25?
100
50
25
10
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
Which of the following is a common factor of 24 and 42?
2
4
8
6
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
What is the Greatest Common Factor (GCF) of 24 and 42?
2
4
6
8
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