A:
Positive:
1 x 129272655 x 258545313 x 99440523 x 56205565 x 198881115 x 112411299 x 432351495 x 8647
Negative:
-1 x -12927265-5 x -2585453-13 x -994405-23 x -562055-65 x -198881-115 x -112411-299 x -43235-1495 x -8647
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 12,927,265, 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 | 12,927,265 | |
| -1 | -12,927,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,927,265.
Example:
1 x 12,927,265 = 12,927,265
and
-1 x -12,927,265 = 12,927,265
Notice both answers equal 12,927,265
With that explanation out of the way, let's continue. Next, we take the number 12,927,265 and divide it by 2:
12,927,265 ÷ 2 = 6,463,632.5
If the quotient is a whole number, then 2 and 6,463,632.5 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 | 12,927,265 | |
| -1 | -12,927,265 |
Now, we try dividing 12,927,265 by 3:
12,927,265 ÷ 3 = 4,309,088.3333
If the quotient is a whole number, then 3 and 4,309,088.3333 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 | 12,927,265 | |
| -1 | -12,927,265 |
Let's try dividing by 4:
12,927,265 ÷ 4 = 3,231,816.25
If the quotient is a whole number, then 4 and 3,231,816.25 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 | 12,927,265 | |
| -1 | 12,927,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 23 | 65 | 115 | 299 | 1,495 | 8,647 | 43,235 | 112,411 | 198,881 | 562,055 | 994,405 | 2,585,453 | 12,927,265 |
| -1 | -5 | -13 | -23 | -65 | -115 | -299 | -1,495 | -8,647 | -43,235 | -112,411 | -198,881 | -562,055 | -994,405 | -2,585,453 | -12,927,265 |
Here are some more numbers to try:
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