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Earn +20 ptsQ: What is the greatest common factor of 21 42 and 36?
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The Greatest Common Factor of 12, 36, 21 is 3.
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Greatest common factor of 21 and 36?
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What is the greatest common factor for 21 36 and 60?
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What is the greatest common factor for 21 and 36?
The factors of 21 are 1, 3, 7, and 21. The factors of 36 are 1, 2, 3, 4, 6, 9, 12, 18, and 36. The factors they have in common are 1 and 3, the largest of which is 3, so 3 is the greatest common factor. Or, you can calculate the greatest common factor by looking at the prime factors. The prime factors of 21 are 3 and 7. The prime factors of 36 are 2, 2, 3, and 3. The prime factors they have in common are a single 3, so 3 is the greatest common factor.
What is the greatest common factor of 21 30 and 36?
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