What two numbers add up to 3142?

There are infinite combinations of two numbers that add up to 3142. Here are some examples using negative numbers:

-1 + 3143 = 3142
-2 + 3144 = 3142
-3 + 3145 = 3142
...

Here are some examples using two fractions that will add up to 3142:

3142/2 + 3142/2 = 3142
6284/3 + 3142/3 = 3142
9426/4 + 3142/4 = 3142
...

And here are some examples using two decimal numbers that will add up to 3142:

1.25 + 3140.75 = 3142
2.50 + 3139.5 = 3142
3.75 + 3138.25 = 3142
...

As you can see from the lists above, it can go on forever. However, when answering "What two numbers add up to 3142?", 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 3142. (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 3142?" has 1571 answers:

1 + 3141 = 3142
2 + 3140 = 3142
3 + 3139 = 3142
.
.
1569 + 1573 = 3142
1570 + 1572 = 3142
1571 + 1571 = 3142

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 3142 by 2 and then rounded down to the nearest whole number if necessary.

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What two numbers add up to 3143?
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