A:
Positive:
1 x 1256126055 x 2512252167 x 1874815257 x 488765335 x 3749631285 x 977531459 x 860957295 x 17219
Negative:
-1 x -125612605-5 x -25122521-67 x -1874815-257 x -488765-335 x -374963-1285 x -97753-1459 x -86095-7295 x -17219
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 125,612,605, 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 | 125,612,605 | |
| -1 | -125,612,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,612,605.
Example:
1 x 125,612,605 = 125,612,605
and
-1 x -125,612,605 = 125,612,605
Notice both answers equal 125,612,605
With that explanation out of the way, let's continue. Next, we take the number 125,612,605 and divide it by 2:
125,612,605 ÷ 2 = 62,806,302.5
If the quotient is a whole number, then 2 and 62,806,302.5 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 | 125,612,605 | |
| -1 | -125,612,605 |
Now, we try dividing 125,612,605 by 3:
125,612,605 ÷ 3 = 41,870,868.3333
If the quotient is a whole number, then 3 and 41,870,868.3333 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 | 125,612,605 | |
| -1 | -125,612,605 |
Let's try dividing by 4:
125,612,605 ÷ 4 = 31,403,151.25
If the quotient is a whole number, then 4 and 31,403,151.25 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 | 125,612,605 | |
| -1 | 125,612,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 67 | 257 | 335 | 1,285 | 1,459 | 7,295 | 17,219 | 86,095 | 97,753 | 374,963 | 488,765 | 1,874,815 | 25,122,521 | 125,612,605 |
| -1 | -5 | -67 | -257 | -335 | -1,285 | -1,459 | -7,295 | -17,219 | -86,095 | -97,753 | -374,963 | -488,765 | -1,874,815 | -25,122,521 | -125,612,605 |
Here are some more numbers to try:
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