Question

What is the sum of all prime factors of 20? 

{ } 2

{ } 1

{ } 8

{ } 12

{ } 9

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Answer 1

Answer:

Why is 42 the sum of all factors of 20, including 20? The factors of the number 20 are: 1, 2, 4, 5, 10, 20. If you add them up, you will get the total of 42.

Step-by-step explanation:

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Answer 2

12.

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