A:
Positive:
1 x 26156705311 x 2377882319 x 1376668771 x 3684043209 x 1251517781 x 3349131349 x 19389714839 x 17627
Negative:
-1 x -261567053-11 x -23778823-19 x -13766687-71 x -3684043-209 x -1251517-781 x -334913-1349 x -193897-14839 x -17627
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 261,567,053, 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 | 261,567,053 | |
| -1 | -261,567,053 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 261,567,053.
Example:
1 x 261,567,053 = 261,567,053
and
-1 x -261,567,053 = 261,567,053
Notice both answers equal 261,567,053
With that explanation out of the way, let's continue. Next, we take the number 261,567,053 and divide it by 2:
261,567,053 ÷ 2 = 130,783,526.5
If the quotient is a whole number, then 2 and 130,783,526.5 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 | 261,567,053 | |
| -1 | -261,567,053 |
Now, we try dividing 261,567,053 by 3:
261,567,053 ÷ 3 = 87,189,017.6667
If the quotient is a whole number, then 3 and 87,189,017.6667 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 | 261,567,053 | |
| -1 | -261,567,053 |
Let's try dividing by 4:
261,567,053 ÷ 4 = 65,391,763.25
If the quotient is a whole number, then 4 and 65,391,763.25 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 | 261,567,053 | |
| -1 | 261,567,053 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 71 | 209 | 781 | 1,349 | 14,839 | 17,627 | 193,897 | 334,913 | 1,251,517 | 3,684,043 | 13,766,687 | 23,778,823 | 261,567,053 |
| -1 | -11 | -19 | -71 | -209 | -781 | -1,349 | -14,839 | -17,627 | -193,897 | -334,913 | -1,251,517 | -3,684,043 | -13,766,687 | -23,778,823 | -261,567,053 |
Here are some more numbers to try:
Try the factor calculator