Prime Factorization Method
There are multiple ways to find the greatest common factor of given integers. One of these involves computing the prime factorizations of each integer, determining which factors they have in common, and multiplying these factors to find the GCD.
- Find the prime factorization of each number:
11 = 11
22 = 2, 11
- Identify the common prime factors between 11 and 22: 11
- To find GCF multiply the common prime factors: GCF(11, 22) = 11
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Need support for a different topic? Write to usListing All Common Factors Method
To find the Greatest Common Factor (GCF) of 11 and 22 by listing all common factors, follow these steps:
- List all factors of each number:
- Factors of 11: 1, 11
- Factors of 22: 1, 2, 11, 22
- Identify the common factors of 11 and 22: 1, 11
- Determine the greatest common factor:
- The greatest common factor is the largest number in the list of common factors, i.e. 11
So, the Greatest Common Factor (GCF) of 11 and 22 is 11.
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Summary
What is the GCF of 11 and 22? The answer is 11. Find GCD/HCF using prime, common factors, video tutorial & instructions for each step.
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