A:
Positive:
1 x 1022315155 x 2044630383 x 1231705181 x 564815415 x 246341905 x 1129631361 x 751156805 x 15023
Negative:
-1 x -102231515-5 x -20446303-83 x -1231705-181 x -564815-415 x -246341-905 x -112963-1361 x -75115-6805 x -15023
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 102,231,515, 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 | 102,231,515 | |
| -1 | -102,231,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,231,515.
Example:
1 x 102,231,515 = 102,231,515
and
-1 x -102,231,515 = 102,231,515
Notice both answers equal 102,231,515
With that explanation out of the way, let's continue. Next, we take the number 102,231,515 and divide it by 2:
102,231,515 ÷ 2 = 51,115,757.5
If the quotient is a whole number, then 2 and 51,115,757.5 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 | 102,231,515 | |
| -1 | -102,231,515 |
Now, we try dividing 102,231,515 by 3:
102,231,515 ÷ 3 = 34,077,171.6667
If the quotient is a whole number, then 3 and 34,077,171.6667 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 | 102,231,515 | |
| -1 | -102,231,515 |
Let's try dividing by 4:
102,231,515 ÷ 4 = 25,557,878.75
If the quotient is a whole number, then 4 and 25,557,878.75 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 | 102,231,515 | |
| -1 | 102,231,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 181 | 415 | 905 | 1,361 | 6,805 | 15,023 | 75,115 | 112,963 | 246,341 | 564,815 | 1,231,705 | 20,446,303 | 102,231,515 |
| -1 | -5 | -83 | -181 | -415 | -905 | -1,361 | -6,805 | -15,023 | -75,115 | -112,963 | -246,341 | -564,815 | -1,231,705 | -20,446,303 | -102,231,515 |
Here are some more numbers to try:
Try the factor calculator