What is the sum of all the positive factors of 8?

To determine the sum of all the positive factors of the number 8, we first need to identify what those factors are. The positive factors of 8 are the numbers that can divide 8 without leaving a remainder. The factors of 8 are 1, 2, 4, and 8.

Now, we add all these factors together:

1 + 2 + 4 + 8 = 15.

Thus, the sum of all the positive factors of 8 is indeed 15.

Understanding how to find the factors and then summing them is crucial in similar problems, and recognizing that summing contributions from each distinct factor leads to the correct total is essential in this context.