What two numbers add up to 6820?

There are infinite combinations of two numbers that add up to 6820. Here are some examples using negative numbers:

-1 + 6821 = 6820
-2 + 6822 = 6820
-3 + 6823 = 6820
...

Here are some examples using two fractions that will add up to 6820:

6820/2 + 6820/2 = 6820
13640/3 + 6820/3 = 6820
20460/4 + 6820/4 = 6820
...

And here are some examples using two decimal numbers that will add up to 6820:

1.25 + 6818.75 = 6820
2.50 + 6817.5 = 6820
3.75 + 6816.25 = 6820
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 6820?", 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 6820. (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 6820?" has 3410 answers:

1 + 6819 = 6820
2 + 6818 = 6820
3 + 6817 = 6820
.
.
3408 + 3412 = 6820
3409 + 3411 = 6820
3410 + 3410 = 6820

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 6820 by 2 and then rounded down to the nearest whole number if necessary.

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