A:
Positive:
1 x 25977286917 x 1528075767 x 3877207131 x 19829991139 x 2280711741 x 1492092227 x 1166478777 x 29597
Negative:
-1 x -259772869-17 x -15280757-67 x -3877207-131 x -1982999-1139 x -228071-1741 x -149209-2227 x -116647-8777 x -29597
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 259,772,869, 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 | 259,772,869 | |
| -1 | -259,772,869 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 259,772,869.
Example:
1 x 259,772,869 = 259,772,869
and
-1 x -259,772,869 = 259,772,869
Notice both answers equal 259,772,869
With that explanation out of the way, let's continue. Next, we take the number 259,772,869 and divide it by 2:
259,772,869 ÷ 2 = 129,886,434.5
If the quotient is a whole number, then 2 and 129,886,434.5 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 | 259,772,869 | |
| -1 | -259,772,869 |
Now, we try dividing 259,772,869 by 3:
259,772,869 ÷ 3 = 86,590,956.3333
If the quotient is a whole number, then 3 and 86,590,956.3333 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 | 259,772,869 | |
| -1 | -259,772,869 |
Let's try dividing by 4:
259,772,869 ÷ 4 = 64,943,217.25
If the quotient is a whole number, then 4 and 64,943,217.25 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 | 259,772,869 | |
| -1 | 259,772,869 |
If you did it right, you will end up with this table:
| 1 | 17 | 67 | 131 | 1,139 | 1,741 | 2,227 | 8,777 | 29,597 | 116,647 | 149,209 | 228,071 | 1,982,999 | 3,877,207 | 15,280,757 | 259,772,869 |
| -1 | -17 | -67 | -131 | -1,139 | -1,741 | -2,227 | -8,777 | -29,597 | -116,647 | -149,209 | -228,071 | -1,982,999 | -3,877,207 | -15,280,757 | -259,772,869 |
Here are some more numbers to try:
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