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What is the GCF of 30 and 65?
The gcd or gcf is 5. We could find this by factoring. Another way is to list the factors and then find the biggest common one.
How do you find the GCF of numbers using intersection of sets?
If you were to find the GCF of 20 and 36. Draw 2 overlapping circles. List "20" above one of the circles and "36" above the other. In the circle under "20", list the factors of 20 that are NOT factors of 36- 1, 5, 10, 20. In the other circle, list the factors of 36 that are NOT factors of 20- 1, 3, 6, 9, 12, 36. The factors that 20 and 36 that are in common are listed in the overlapping part of the circle or intersection- 2, 4. The greatest number in common is 4 (GCF). In other words, the largest number listed in the intersection is the GCF.
How do you find out the GCF of 45 60?
First you find the factors of 45 and 60. The Factors of 45 are:1,3,5,9,15,and 45 The Factors of 60 are:1,2,3,4,5,6,10,12,15,20,30,60 The GCF is the highest common number so the GCF is 15.
What is the GCF of 27 and 189?
The greatest common factor (GCF) of 27 and 189 is 27. To find the GCF, you can list the factors of each number and find the largest number that both 27 and 189 share. The factors of 27 are 1, 3, 9, and 27, while the factors of 189 are 1, 3, 7, 9, 21, 27, 63, and 189. The largest number that appears in both lists is 27, making it the GCF.
How do you find the gcf of 15 and 27?
Find out all the factors and then find the greatest common factor (gcf)...........very easy
