A:
Positive:
1 x 12534520713 x 9641939149 x 841243163 x 768989397 x 3157311937 x 647112119 x 591535161 x 24287
Negative:
-1 x -125345207-13 x -9641939-149 x -841243-163 x -768989-397 x -315731-1937 x -64711-2119 x -59153-5161 x -24287
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 125,345,207, 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 | 125,345,207 | |
| -1 | -125,345,207 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,345,207.
Example:
1 x 125,345,207 = 125,345,207
and
-1 x -125,345,207 = 125,345,207
Notice both answers equal 125,345,207
With that explanation out of the way, let's continue. Next, we take the number 125,345,207 and divide it by 2:
125,345,207 ÷ 2 = 62,672,603.5
If the quotient is a whole number, then 2 and 62,672,603.5 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 | 125,345,207 | |
| -1 | -125,345,207 |
Now, we try dividing 125,345,207 by 3:
125,345,207 ÷ 3 = 41,781,735.6667
If the quotient is a whole number, then 3 and 41,781,735.6667 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 | 125,345,207 | |
| -1 | -125,345,207 |
Let's try dividing by 4:
125,345,207 ÷ 4 = 31,336,301.75
If the quotient is a whole number, then 4 and 31,336,301.75 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 | 125,345,207 | |
| -1 | 125,345,207 |
If you did it right, you will end up with this table:
| 1 | 13 | 149 | 163 | 397 | 1,937 | 2,119 | 5,161 | 24,287 | 59,153 | 64,711 | 315,731 | 768,989 | 841,243 | 9,641,939 | 125,345,207 |
| -1 | -13 | -149 | -163 | -397 | -1,937 | -2,119 | -5,161 | -24,287 | -59,153 | -64,711 | -315,731 | -768,989 | -841,243 | -9,641,939 | -125,345,207 |
Here are some more numbers to try:
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