A:
Positive:
1 x 2601604397 x 3716577711 x 2365094977 x 337870789 x 2923151623 x 417593979 x 2657416853 x 37963
Negative:
-1 x -260160439-7 x -37165777-11 x -23650949-77 x -3378707-89 x -2923151-623 x -417593-979 x -265741-6853 x -37963
Unfortunately, there's not simple formula to identifying all of the factors of a number and it can be a tedious process when trying to identify the divisors of larger numbers. To find the factor combinations of the number 260,160,439, it is easier to work with a table - it's called factoring from the outside in.
We start by creating a table and writing 1 on the left side and then the number we're trying to find the factors for on the right side in a table. Then, below that, write the numbers as a negative as well.
| 1 | 260,160,439 | |
| -1 | -260,160,439 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 260,160,439.
Example:
1 x 260,160,439 = 260,160,439
and
-1 x -260,160,439 = 260,160,439
Notice both answers equal 260,160,439
With that explanation out of the way, let's continue. Next, we take the number 260,160,439 and divide it by 2:
260,160,439 ÷ 2 = 130,080,219.5
If the quotient is a whole number, then 2 and 130,080,219.5 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 260,160,439 | |
| -1 | -260,160,439 |
Now, we try dividing 260,160,439 by 3:
260,160,439 ÷ 3 = 86,720,146.3333
If the quotient is a whole number, then 3 and 86,720,146.3333 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 260,160,439 | |
| -1 | -260,160,439 |
Let's try dividing by 4:
260,160,439 ÷ 4 = 65,040,109.75
If the quotient is a whole number, then 4 and 65,040,109.75 are factors. In this case, the quotient is not a whole number. Don't write anything down and try the next divisor.
Here is what our table should look like at this step:
| 1 | 260,160,439 | |
| -1 | 260,160,439 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 89 | 623 | 979 | 6,853 | 37,963 | 265,741 | 417,593 | 2,923,151 | 3,378,707 | 23,650,949 | 37,165,777 | 260,160,439 |
| -1 | -7 | -11 | -77 | -89 | -623 | -979 | -6,853 | -37,963 | -265,741 | -417,593 | -2,923,151 | -3,378,707 | -23,650,949 | -37,165,777 | -260,160,439 |
Here are some more numbers to try:
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