A:
Positive:
1 x 2615567355 x 5231134711 x 2377788555 x 475557759 x 4433165295 x 886633649 x 4030153245 x 80603
Negative:
-1 x -261556735-5 x -52311347-11 x -23777885-55 x -4755577-59 x -4433165-295 x -886633-649 x -403015-3245 x -80603
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 261,556,735, 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 | 261,556,735 | |
| -1 | -261,556,735 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 261,556,735.
Example:
1 x 261,556,735 = 261,556,735
and
-1 x -261,556,735 = 261,556,735
Notice both answers equal 261,556,735
With that explanation out of the way, let's continue. Next, we take the number 261,556,735 and divide it by 2:
261,556,735 ÷ 2 = 130,778,367.5
If the quotient is a whole number, then 2 and 130,778,367.5 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 | 261,556,735 | |
| -1 | -261,556,735 |
Now, we try dividing 261,556,735 by 3:
261,556,735 ÷ 3 = 87,185,578.3333
If the quotient is a whole number, then 3 and 87,185,578.3333 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 | 261,556,735 | |
| -1 | -261,556,735 |
Let's try dividing by 4:
261,556,735 ÷ 4 = 65,389,183.75
If the quotient is a whole number, then 4 and 65,389,183.75 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 | 261,556,735 | |
| -1 | 261,556,735 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 59 | 295 | 649 | 3,245 | 80,603 | 403,015 | 886,633 | 4,433,165 | 4,755,577 | 23,777,885 | 52,311,347 | 261,556,735 |
| -1 | -5 | -11 | -55 | -59 | -295 | -649 | -3,245 | -80,603 | -403,015 | -886,633 | -4,433,165 | -4,755,577 | -23,777,885 | -52,311,347 | -261,556,735 |
Here are some more numbers to try:
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