A:
Positive:
1 x 12550242111 x 1140931123 x 5456627233 x 538637253 x 4960572129 x 589492563 x 489675359 x 23419
Negative:
-1 x -125502421-11 x -11409311-23 x -5456627-233 x -538637-253 x -496057-2129 x -58949-2563 x -48967-5359 x -23419
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 125,502,421, 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 | 125,502,421 | |
| -1 | -125,502,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 125,502,421.
Example:
1 x 125,502,421 = 125,502,421
and
-1 x -125,502,421 = 125,502,421
Notice both answers equal 125,502,421
With that explanation out of the way, let's continue. Next, we take the number 125,502,421 and divide it by 2:
125,502,421 ÷ 2 = 62,751,210.5
If the quotient is a whole number, then 2 and 62,751,210.5 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 | 125,502,421 | |
| -1 | -125,502,421 |
Now, we try dividing 125,502,421 by 3:
125,502,421 ÷ 3 = 41,834,140.3333
If the quotient is a whole number, then 3 and 41,834,140.3333 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 | 125,502,421 | |
| -1 | -125,502,421 |
Let's try dividing by 4:
125,502,421 ÷ 4 = 31,375,605.25
If the quotient is a whole number, then 4 and 31,375,605.25 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 | 125,502,421 | |
| -1 | 125,502,421 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 233 | 253 | 2,129 | 2,563 | 5,359 | 23,419 | 48,967 | 58,949 | 496,057 | 538,637 | 5,456,627 | 11,409,311 | 125,502,421 |
| -1 | -11 | -23 | -233 | -253 | -2,129 | -2,563 | -5,359 | -23,419 | -48,967 | -58,949 | -496,057 | -538,637 | -5,456,627 | -11,409,311 | -125,502,421 |
Here are some more numbers to try:
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