A:
Positive:
1 x 130557055 x 261114113 x 100428565 x 200857353 x 36985569 x 229451765 x 73972845 x 4589
Negative:
-1 x -13055705-5 x -2611141-13 x -1004285-65 x -200857-353 x -36985-569 x -22945-1765 x -7397-2845 x -4589
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 13,055,705, 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 | 13,055,705 | |
| -1 | -13,055,705 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,055,705.
Example:
1 x 13,055,705 = 13,055,705
and
-1 x -13,055,705 = 13,055,705
Notice both answers equal 13,055,705
With that explanation out of the way, let's continue. Next, we take the number 13,055,705 and divide it by 2:
13,055,705 ÷ 2 = 6,527,852.5
If the quotient is a whole number, then 2 and 6,527,852.5 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 | 13,055,705 | |
| -1 | -13,055,705 |
Now, we try dividing 13,055,705 by 3:
13,055,705 ÷ 3 = 4,351,901.6667
If the quotient is a whole number, then 3 and 4,351,901.6667 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 | 13,055,705 | |
| -1 | -13,055,705 |
Let's try dividing by 4:
13,055,705 ÷ 4 = 3,263,926.25
If the quotient is a whole number, then 4 and 3,263,926.25 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 | 13,055,705 | |
| -1 | 13,055,705 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 353 | 569 | 1,765 | 2,845 | 4,589 | 7,397 | 22,945 | 36,985 | 200,857 | 1,004,285 | 2,611,141 | 13,055,705 |
| -1 | -5 | -13 | -65 | -353 | -569 | -1,765 | -2,845 | -4,589 | -7,397 | -22,945 | -36,985 | -200,857 | -1,004,285 | -2,611,141 | -13,055,705 |
Here are some more numbers to try:
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