A:
Positive:
1 x 1292302277 x 1846146131 x 4168717197 x 655991217 x 5955311379 x 937133023 x 427496107 x 21161
Negative:
-1 x -129230227-7 x -18461461-31 x -4168717-197 x -655991-217 x -595531-1379 x -93713-3023 x -42749-6107 x -21161
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 129,230,227, 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 | 129,230,227 | |
| -1 | -129,230,227 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 129,230,227.
Example:
1 x 129,230,227 = 129,230,227
and
-1 x -129,230,227 = 129,230,227
Notice both answers equal 129,230,227
With that explanation out of the way, let's continue. Next, we take the number 129,230,227 and divide it by 2:
129,230,227 ÷ 2 = 64,615,113.5
If the quotient is a whole number, then 2 and 64,615,113.5 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 | 129,230,227 | |
| -1 | -129,230,227 |
Now, we try dividing 129,230,227 by 3:
129,230,227 ÷ 3 = 43,076,742.3333
If the quotient is a whole number, then 3 and 43,076,742.3333 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 | 129,230,227 | |
| -1 | -129,230,227 |
Let's try dividing by 4:
129,230,227 ÷ 4 = 32,307,556.75
If the quotient is a whole number, then 4 and 32,307,556.75 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 | 129,230,227 | |
| -1 | 129,230,227 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 197 | 217 | 1,379 | 3,023 | 6,107 | 21,161 | 42,749 | 93,713 | 595,531 | 655,991 | 4,168,717 | 18,461,461 | 129,230,227 |
| -1 | -7 | -31 | -197 | -217 | -1,379 | -3,023 | -6,107 | -21,161 | -42,749 | -93,713 | -595,531 | -655,991 | -4,168,717 | -18,461,461 | -129,230,227 |
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