what is the smallest common factor of 11 and 20?
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Least Common Multiple of 11 and 20. Least common multiple (LCM) of 11 and 20 is 220.
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We found the factors and prime factorization of 45 and 50. The biggest common factor number is the GCF number. So the greatest common factor 45 and 50 is 5.
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['1 × 40 = 40.', '2 × 20 = 40.', '4 × 10 = 40.', '5 × 8 = 40. Therefore, the factors in pairs are (1, 40), (2, 20), (4, 10) and (5, 8).']
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In the intersection factors of 45 ∩ factors of 10 the greatest element is 5. Therefore, the greatest common factor of 45 and 10 is 5.
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Least Common Multiple of 11 and 22. Least common multiple (LCM) of 11 and 22 is 22.
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The common factors of 11 and 66 are 11, 1, intersecting the two sets above. In the intersection factors of 11 ∩ factors of 66 the greatest element is 11. Therefore, the greatest common factor of 11 and 66 is 11.
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Greatest Common Factor of 3 and 20. Greatest common factor (GCF) of 3 and 20 is 1.
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Greatest Common Factor of 11 and 21. Greatest common factor (GCF) of 11 and 21 is 1.
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The first multiple that 8 and 12 have in common is 24. Notice that 48 is also a common multiple; however, 24 is the smallest number that they have in common. This makes it the least common multiple.
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It is simply the smallest of the common multiples. In our previous example, the smallest of the common multiples is 20 ... ... so the Least Common Multiple of 4 and 5 is 20.
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The factors of 9 are 9, 3, 1. The common factors of 11 and 9 are 1, intersecting the two sets above. In the intersection factors of 11 ∩ factors of 9 the greatest element is 1. Therefore, the greatest common factor of 11 and 9 is 1.
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Greatest Common Factor of 11 and 24. Greatest common factor (GCF) of 11 and 24 is 1.
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Greatest Common Factor of 11 and 18. Greatest common factor (GCF) of 11 and 18 is 1. We will now calculate the prime factors of 11 and 18, than find the greatest common factor (greatest common divisor (gcd)) of the numbers by matching the biggest common factor of 11 and 18.
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Greatest Common Factor of 8 and 20. Greatest common factor (GCF) of 8 and 20 is 4.
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The gcf of 11 and 12 can be obtained like this: The factors of 11 are 11, 1. The factors of 12 are 12, 6, 4, 3, 2, 1. The common factors of 11 and 12 are 1, intersecting the two sets above.
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We found the factors and prime factorization of 7 and 20. The biggest common factor number is the GCF number. So the greatest common factor 7 and 20 is 1.
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The two numbers (12 and 16) share many common multiples if you keep expanding on the lists of multiples. But from comparing the two lists, we can see that 48 is the lowest, or least common muliple.