A:
Positive:
1 x 1293862713 x 99527923 x 562549109 x 118703299 x 43273397 x 325911417 x 91312507 x 5161
Negative:
-1 x -12938627-13 x -995279-23 x -562549-109 x -118703-299 x -43273-397 x -32591-1417 x -9131-2507 x -5161
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 12,938,627, 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 | 12,938,627 | |
| -1 | -12,938,627 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,938,627.
Example:
1 x 12,938,627 = 12,938,627
and
-1 x -12,938,627 = 12,938,627
Notice both answers equal 12,938,627
With that explanation out of the way, let's continue. Next, we take the number 12,938,627 and divide it by 2:
12,938,627 ÷ 2 = 6,469,313.5
If the quotient is a whole number, then 2 and 6,469,313.5 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 | 12,938,627 | |
| -1 | -12,938,627 |
Now, we try dividing 12,938,627 by 3:
12,938,627 ÷ 3 = 4,312,875.6667
If the quotient is a whole number, then 3 and 4,312,875.6667 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 | 12,938,627 | |
| -1 | -12,938,627 |
Let's try dividing by 4:
12,938,627 ÷ 4 = 3,234,656.75
If the quotient is a whole number, then 4 and 3,234,656.75 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 | 12,938,627 | |
| -1 | 12,938,627 |
If you did it right, you will end up with this table:
| 1 | 13 | 23 | 109 | 299 | 397 | 1,417 | 2,507 | 5,161 | 9,131 | 32,591 | 43,273 | 118,703 | 562,549 | 995,279 | 12,938,627 |
| -1 | -13 | -23 | -109 | -299 | -397 | -1,417 | -2,507 | -5,161 | -9,131 | -32,591 | -43,273 | -118,703 | -562,549 | -995,279 | -12,938,627 |
Here are some more numbers to try:
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