A:
Positive:
1 x 2610434755 x 522086957 x 3729192511 x 2373122525 x 1044173935 x 745838555 x 474624577 x 3390175175 x 1491677275 x 949249385 x 6780351925 x 135607
Negative:
-1 x -261043475-5 x -52208695-7 x -37291925-11 x -23731225-25 x -10441739-35 x -7458385-55 x -4746245-77 x -3390175-175 x -1491677-275 x -949249-385 x -678035-1925 x -135607
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 261,043,475, 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 | 261,043,475 | |
| -1 | -261,043,475 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 261,043,475.
Example:
1 x 261,043,475 = 261,043,475
and
-1 x -261,043,475 = 261,043,475
Notice both answers equal 261,043,475
With that explanation out of the way, let's continue. Next, we take the number 261,043,475 and divide it by 2:
261,043,475 ÷ 2 = 130,521,737.5
If the quotient is a whole number, then 2 and 130,521,737.5 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 | 261,043,475 | |
| -1 | -261,043,475 |
Now, we try dividing 261,043,475 by 3:
261,043,475 ÷ 3 = 87,014,491.6667
If the quotient is a whole number, then 3 and 87,014,491.6667 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 | 261,043,475 | |
| -1 | -261,043,475 |
Let's try dividing by 4:
261,043,475 ÷ 4 = 65,260,868.75
If the quotient is a whole number, then 4 and 65,260,868.75 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 | 261,043,475 | |
| -1 | 261,043,475 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 11 | 25 | 35 | 55 | 77 | 175 | 275 | 385 | 1,925 | 135,607 | 678,035 | 949,249 | 1,491,677 | 3,390,175 | 4,746,245 | 7,458,385 | 10,441,739 | 23,731,225 | 37,291,925 | 52,208,695 | 261,043,475 |
| -1 | -5 | -7 | -11 | -25 | -35 | -55 | -77 | -175 | -275 | -385 | -1,925 | -135,607 | -678,035 | -949,249 | -1,491,677 | -3,390,175 | -4,746,245 | -7,458,385 | -10,441,739 | -23,731,225 | -37,291,925 | -52,208,695 | -261,043,475 |
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