A:
Positive:
1 x 120872297 x 172674711 x 109883929 x 41680177 x 156977203 x 59543319 x 378912233 x 5413
Negative:
-1 x -12087229-7 x -1726747-11 x -1098839-29 x -416801-77 x -156977-203 x -59543-319 x -37891-2233 x -5413
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 12,087,229, 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 | 12,087,229 | |
| -1 | -12,087,229 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,087,229.
Example:
1 x 12,087,229 = 12,087,229
and
-1 x -12,087,229 = 12,087,229
Notice both answers equal 12,087,229
With that explanation out of the way, let's continue. Next, we take the number 12,087,229 and divide it by 2:
12,087,229 ÷ 2 = 6,043,614.5
If the quotient is a whole number, then 2 and 6,043,614.5 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 | 12,087,229 | |
| -1 | -12,087,229 |
Now, we try dividing 12,087,229 by 3:
12,087,229 ÷ 3 = 4,029,076.3333
If the quotient is a whole number, then 3 and 4,029,076.3333 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 | 12,087,229 | |
| -1 | -12,087,229 |
Let's try dividing by 4:
12,087,229 ÷ 4 = 3,021,807.25
If the quotient is a whole number, then 4 and 3,021,807.25 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 | 12,087,229 | |
| -1 | 12,087,229 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 29 | 77 | 203 | 319 | 2,233 | 5,413 | 37,891 | 59,543 | 156,977 | 416,801 | 1,098,839 | 1,726,747 | 12,087,229 |
| -1 | -7 | -11 | -29 | -77 | -203 | -319 | -2,233 | -5,413 | -37,891 | -59,543 | -156,977 | -416,801 | -1,098,839 | -1,726,747 | -12,087,229 |
Here are some more numbers to try:
Try the factor calculator