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The greatest common factor of two numbers is 18, and the common factor of these two numbers is ()
The greatest common factor of two numbers is 18. The common factor of these two numbers is (1,2,3,6,9,18)
The greatest common factor of natural numbers a and B is 18. How many are the common factors of these two numbers
Since the greatest common divisor is 18, 18 = 3x6 = 2x9
So there are five common divisors, one, two, three, nine, eighteen
If the greatest common factor of a and B is 18, then all the common factors of the two numbers are equal
-18, - 9, - 6, - 3, - 2, - 1,1,2,3,6,9,18 are 12 common factors,
Hope to help you!
What is the greatest common factor of 18 and 20______ The least common multiple is______ ．
18 = 2 × 3 × 3, 20 = 2 × 2 × 5, the common prime factors of 18 and 20 are: 2, the unique prime factors of 18 are 3 and 3, and the unique prime factors of 20 are 2 and 5, so the greatest common factor of 18 and 20 is: 2, and the least common multiple of 18 and 20 is: 2 × 3 × 2 × 5 = 180
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