A:
Positive:
1 x 2602072555 x 520414517 x 3717246511 x 2365520535 x 743449355 x 473104177 x 3379315385 x 675863
Negative:
-1 x -260207255-5 x -52041451-7 x -37172465-11 x -23655205-35 x -7434493-55 x -4731041-77 x -3379315-385 x -675863
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 260,207,255, 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 | 260,207,255 | |
| -1 | -260,207,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 260,207,255.
Example:
1 x 260,207,255 = 260,207,255
and
-1 x -260,207,255 = 260,207,255
Notice both answers equal 260,207,255
With that explanation out of the way, let's continue. Next, we take the number 260,207,255 and divide it by 2:
260,207,255 ÷ 2 = 130,103,627.5
If the quotient is a whole number, then 2 and 130,103,627.5 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 | 260,207,255 | |
| -1 | -260,207,255 |
Now, we try dividing 260,207,255 by 3:
260,207,255 ÷ 3 = 86,735,751.6667
If the quotient is a whole number, then 3 and 86,735,751.6667 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 | 260,207,255 | |
| -1 | -260,207,255 |
Let's try dividing by 4:
260,207,255 ÷ 4 = 65,051,813.75
If the quotient is a whole number, then 4 and 65,051,813.75 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 | 260,207,255 | |
| -1 | 260,207,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 35 | 55 | 77 | 385 | 675,863 | 3,379,315 | 4,731,041 | 7,434,493 | 23,655,205 | 37,172,465 | 52,041,451 | 260,207,255 |
| -1 | -5 | -7 | -11 | -35 | -55 | -77 | -385 | -675,863 | -3,379,315 | -4,731,041 | -7,434,493 | -23,655,205 | -37,172,465 | -52,041,451 | -260,207,255 |
Here are some more numbers to try:
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