What two numbers add up to 8129?

There are infinite combinations of two numbers that add up to 8129. Here are some examples using negative numbers:

-1 + 8130 = 8129
-2 + 8131 = 8129
-3 + 8132 = 8129
...

Here are some examples using two fractions that will add up to 8129:

8129/2 + 8129/2 = 8129
16258/3 + 8129/3 = 8129
24387/4 + 8129/4 = 8129
...

And here are some examples using two decimal numbers that will add up to 8129:

1.25 + 8127.75 = 8129
2.50 + 8126.5 = 8129
3.75 + 8125.25 = 8129
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 8129?", it may be more interesting to set some criteria to limit the result. We will set the follow criteria:

1) Only positive whole numbers can add up to 8129. (0 is not a positive or negative number and should not be included.)

2) Since a+b=29 is the same as b+a=29, we should only list it once.

Now, the answer to "What two numbers add up to 8129?" has 4064 answers:

1 + 8128 = 8129
2 + 8127 = 8129
3 + 8126 = 8129
.
.
4062 + 4067 = 8129
4063 + 4066 = 8129
4064 + 4065 = 8129

We have truncated the list above due to space, but you may be interested to know that we calculated the number of answers by dividing 8129 by 2 and then rounded down to the nearest whole number if necessary.

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