What two numbers add up to 6397?

There are infinite combinations of two numbers that add up to 6397. Here are some examples using negative numbers:

-1 + 6398 = 6397
-2 + 6399 = 6397
-3 + 6400 = 6397
...

Here are some examples using two fractions that will add up to 6397:

6397/2 + 6397/2 = 6397
12794/3 + 6397/3 = 6397
19191/4 + 6397/4 = 6397
...

And here are some examples using two decimal numbers that will add up to 6397:

1.25 + 6395.75 = 6397
2.50 + 6394.5 = 6397
3.75 + 6393.25 = 6397
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 6397?", 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 6397. (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 6397?" has 3198 answers:

1 + 6396 = 6397
2 + 6395 = 6397
3 + 6394 = 6397
.
.
3196 + 3201 = 6397
3197 + 3200 = 6397
3198 + 3199 = 6397

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 6397 by 2 and then rounded down to the nearest whole number if necessary.

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