The factors of 18 are 1, 2, 3, 6, 9, and 18. The prime factors are 2, 3 and 3.
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To find the common factors of 9 and 18, we first need to list the factors of each number. The factors of 9 are 1, 3, and 9, while the factors of 18 are 1, 2, 3, 6, 9, and 18. The common factors of 9 and 18 are 1, 3, and 9. Adding these common factors together gives us a sum of 13.
The distinct prime factors of 550 are 2, 5 and 11. They add up to 18.
1 x 18 2 x 9 3 x 6 2 x 3 x 3
28
The Greatest Common Factor of 36, 54: 18