A:
Positive:
1 x 129480655 x 258961313 x 99600529 x 44648565 x 199201145 x 89297377 x 343451885 x 6869
Negative:
-1 x -12948065-5 x -2589613-13 x -996005-29 x -446485-65 x -199201-145 x -89297-377 x -34345-1885 x -6869
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 12,948,065, 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 | 12,948,065 | |
| -1 | -12,948,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,948,065.
Example:
1 x 12,948,065 = 12,948,065
and
-1 x -12,948,065 = 12,948,065
Notice both answers equal 12,948,065
With that explanation out of the way, let's continue. Next, we take the number 12,948,065 and divide it by 2:
12,948,065 ÷ 2 = 6,474,032.5
If the quotient is a whole number, then 2 and 6,474,032.5 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 | 12,948,065 | |
| -1 | -12,948,065 |
Now, we try dividing 12,948,065 by 3:
12,948,065 ÷ 3 = 4,316,021.6667
If the quotient is a whole number, then 3 and 4,316,021.6667 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 | 12,948,065 | |
| -1 | -12,948,065 |
Let's try dividing by 4:
12,948,065 ÷ 4 = 3,237,016.25
If the quotient is a whole number, then 4 and 3,237,016.25 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 | 12,948,065 | |
| -1 | 12,948,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 29 | 65 | 145 | 377 | 1,885 | 6,869 | 34,345 | 89,297 | 199,201 | 446,485 | 996,005 | 2,589,613 | 12,948,065 |
| -1 | -5 | -13 | -29 | -65 | -145 | -377 | -1,885 | -6,869 | -34,345 | -89,297 | -199,201 | -446,485 | -996,005 | -2,589,613 | -12,948,065 |
Here are some more numbers to try:
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