A:
Positive:
1 x 1305241217 x 1864630313 x 1004031791 x 1434331109 x 1197469763 x 1710671417 x 921139919 x 13159
Negative:
-1 x -130524121-7 x -18646303-13 x -10040317-91 x -1434331-109 x -1197469-763 x -171067-1417 x -92113-9919 x -13159
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 130,524,121, 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 | 130,524,121 | |
| -1 | -130,524,121 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 130,524,121.
Example:
1 x 130,524,121 = 130,524,121
and
-1 x -130,524,121 = 130,524,121
Notice both answers equal 130,524,121
With that explanation out of the way, let's continue. Next, we take the number 130,524,121 and divide it by 2:
130,524,121 ÷ 2 = 65,262,060.5
If the quotient is a whole number, then 2 and 65,262,060.5 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 | 130,524,121 | |
| -1 | -130,524,121 |
Now, we try dividing 130,524,121 by 3:
130,524,121 ÷ 3 = 43,508,040.3333
If the quotient is a whole number, then 3 and 43,508,040.3333 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 | 130,524,121 | |
| -1 | -130,524,121 |
Let's try dividing by 4:
130,524,121 ÷ 4 = 32,631,030.25
If the quotient is a whole number, then 4 and 32,631,030.25 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 | 130,524,121 | |
| -1 | 130,524,121 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 109 | 763 | 1,417 | 9,919 | 13,159 | 92,113 | 171,067 | 1,197,469 | 1,434,331 | 10,040,317 | 18,646,303 | 130,524,121 |
| -1 | -7 | -13 | -91 | -109 | -763 | -1,417 | -9,919 | -13,159 | -92,113 | -171,067 | -1,197,469 | -1,434,331 | -10,040,317 | -18,646,303 | -130,524,121 |
Here are some more numbers to try:
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