Finding Common Factors
This worksheet helps Grade 6 students practice identifying common factors of numbers.
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Finding Common Factors Worksheet
Name:
Date:
Score:
Read each question carefully and follow the instructions to find the common factors.
List all the factors for each number.
1. Factors of 12:
2. Factors of 18:
3. Factors of 24:
4. Factors of 30:
Find all the common factors for each pair of numbers.
1. Common factors of 10 and 15:
2. Common factors of 16 and 24:
3. Common factors of 20 and 30:
4. Common factors of 28 and 42:
Find the Greatest Common Factor (GCF) for each pair of numbers.
1. GCF of 8 and 12:
2. GCF of 18 and 27:
3. GCF of 36 and 48:
4. GCF of 50 and 75:
1. Which of the following is a common factor of 20 and 25?
2
4
5
10
2. What is the greatest common factor (GCF) of 14 and 21?
1
3
7
14
Determine if the following statements are true or false.
1. The common factors of 6 and 9 are 1 and 3.
True
False
2. The GCF of 15 and 20 is 10.
True
False
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