Q: What is the sum of all factors of the number 420,254,143 excluding 420,254,143?

 A: 1

Why is 1 the sum of all factors of 420,254,143, excluding 420,254,143?

The factors of the number 420,254,143 are: 1, 420254143.

If you add them up, you will get the total of 420,254,144. Now subtract 420,254,143 to get 1


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