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The factors of 81 are: 1, 3, 9, 27, 81
The factors of 90 are: 1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90
The common factors are: 1, 3, 9
- The Greatest Common Factor (GCF) is: 9
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Related questions
What is the greatest common factor of 45 81 and 90?
GCF (45, 81, 90) = 9
What is the greatest common factors of 81 and 9 and 90?
The GCF is 9.
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