Greatest Common Divisor (GCD) Worksheet
This worksheet helps Grade 8 students practice finding the greatest common divisor (GCD) of two or more numbers using various methods.
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Greatest Common Divisor (GCD) Practice
Name:
Date:
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Read each question carefully and follow the instructions to find the Greatest Common Divisor (GCD).
1. The Greatest Common Divisor (GCD) is the number that divides two or more numbers without leaving a remainder.
2. To find the GCD, you can list all the of each number and find the largest one they share.
3. The prime factorization method involves breaking down each number into its factors.
4. List all the factors of 24 and 36. Then, identify their greatest common divisor.
5. What is the GCD of 12 and 18?
2
3
6
12
6. Find the GCD of 45, 75, and 105 using the prime factorization method. Show your work.
7. The GCD of two prime numbers is always 1.
True
False
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