A:
Positive:
1 x 130030555 x 260061113 x 100023565 x 200047251 x 51805797 x 163151255 x 103613263 x 3985
Negative:
-1 x -13003055-5 x -2600611-13 x -1000235-65 x -200047-251 x -51805-797 x -16315-1255 x -10361-3263 x -3985
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 13,003,055, 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 | 13,003,055 | |
| -1 | -13,003,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,003,055.
Example:
1 x 13,003,055 = 13,003,055
and
-1 x -13,003,055 = 13,003,055
Notice both answers equal 13,003,055
With that explanation out of the way, let's continue. Next, we take the number 13,003,055 and divide it by 2:
13,003,055 ÷ 2 = 6,501,527.5
If the quotient is a whole number, then 2 and 6,501,527.5 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 | 13,003,055 | |
| -1 | -13,003,055 |
Now, we try dividing 13,003,055 by 3:
13,003,055 ÷ 3 = 4,334,351.6667
If the quotient is a whole number, then 3 and 4,334,351.6667 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 | 13,003,055 | |
| -1 | -13,003,055 |
Let's try dividing by 4:
13,003,055 ÷ 4 = 3,250,763.75
If the quotient is a whole number, then 4 and 3,250,763.75 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 | 13,003,055 | |
| -1 | 13,003,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 251 | 797 | 1,255 | 3,263 | 3,985 | 10,361 | 16,315 | 51,805 | 200,047 | 1,000,235 | 2,600,611 | 13,003,055 |
| -1 | -5 | -13 | -65 | -251 | -797 | -1,255 | -3,263 | -3,985 | -10,361 | -16,315 | -51,805 | -200,047 | -1,000,235 | -2,600,611 | -13,003,055 |
Here are some more numbers to try:
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