A:
Positive:
1 x 138016255 x 276032525 x 55206541 x 336625125 x 110413205 x 673251025 x 134652693 x 5125
Negative:
-1 x -13801625-5 x -2760325-25 x -552065-41 x -336625-125 x -110413-205 x -67325-1025 x -13465-2693 x -5125
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 13,801,625, 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 | 13,801,625 | |
| -1 | -13,801,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,801,625.
Example:
1 x 13,801,625 = 13,801,625
and
-1 x -13,801,625 = 13,801,625
Notice both answers equal 13,801,625
With that explanation out of the way, let's continue. Next, we take the number 13,801,625 and divide it by 2:
13,801,625 ÷ 2 = 6,900,812.5
If the quotient is a whole number, then 2 and 6,900,812.5 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 | 13,801,625 | |
| -1 | -13,801,625 |
Now, we try dividing 13,801,625 by 3:
13,801,625 ÷ 3 = 4,600,541.6667
If the quotient is a whole number, then 3 and 4,600,541.6667 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 | 13,801,625 | |
| -1 | -13,801,625 |
Let's try dividing by 4:
13,801,625 ÷ 4 = 3,450,406.25
If the quotient is a whole number, then 4 and 3,450,406.25 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 | 13,801,625 | |
| -1 | 13,801,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 41 | 125 | 205 | 1,025 | 2,693 | 5,125 | 13,465 | 67,325 | 110,413 | 336,625 | 552,065 | 2,760,325 | 13,801,625 |
| -1 | -5 | -25 | -41 | -125 | -205 | -1,025 | -2,693 | -5,125 | -13,465 | -67,325 | -110,413 | -336,625 | -552,065 | -2,760,325 | -13,801,625 |
Here are some more numbers to try:
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