A:
Positive:
1 x 268551555 x 537103117 x 157971537 x 72581585 x 315943185 x 145163629 x 426953145 x 8539
Negative:
-1 x -26855155-5 x -5371031-17 x -1579715-37 x -725815-85 x -315943-185 x -145163-629 x -42695-3145 x -8539
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 26,855,155, 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 | 26,855,155 | |
| -1 | -26,855,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 26,855,155.
Example:
1 x 26,855,155 = 26,855,155
and
-1 x -26,855,155 = 26,855,155
Notice both answers equal 26,855,155
With that explanation out of the way, let's continue. Next, we take the number 26,855,155 and divide it by 2:
26,855,155 ÷ 2 = 13,427,577.5
If the quotient is a whole number, then 2 and 13,427,577.5 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 | 26,855,155 | |
| -1 | -26,855,155 |
Now, we try dividing 26,855,155 by 3:
26,855,155 ÷ 3 = 8,951,718.3333
If the quotient is a whole number, then 3 and 8,951,718.3333 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 | 26,855,155 | |
| -1 | -26,855,155 |
Let's try dividing by 4:
26,855,155 ÷ 4 = 6,713,788.75
If the quotient is a whole number, then 4 and 6,713,788.75 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 | 26,855,155 | |
| -1 | 26,855,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 37 | 85 | 185 | 629 | 3,145 | 8,539 | 42,695 | 145,163 | 315,943 | 725,815 | 1,579,715 | 5,371,031 | 26,855,155 |
| -1 | -5 | -17 | -37 | -85 | -185 | -629 | -3,145 | -8,539 | -42,695 | -145,163 | -315,943 | -725,815 | -1,579,715 | -5,371,031 | -26,855,155 |
Here are some more numbers to try:
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