A:
Positive:
1 x 1301323319 x 68490737 x 351709107 x 121619173 x 75221703 x 185112033 x 64013287 x 3959
Negative:
-1 x -13013233-19 x -684907-37 x -351709-107 x -121619-173 x -75221-703 x -18511-2033 x -6401-3287 x -3959
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 13,013,233, 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 | 13,013,233 | |
| -1 | -13,013,233 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,013,233.
Example:
1 x 13,013,233 = 13,013,233
and
-1 x -13,013,233 = 13,013,233
Notice both answers equal 13,013,233
With that explanation out of the way, let's continue. Next, we take the number 13,013,233 and divide it by 2:
13,013,233 ÷ 2 = 6,506,616.5
If the quotient is a whole number, then 2 and 6,506,616.5 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 | 13,013,233 | |
| -1 | -13,013,233 |
Now, we try dividing 13,013,233 by 3:
13,013,233 ÷ 3 = 4,337,744.3333
If the quotient is a whole number, then 3 and 4,337,744.3333 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 | 13,013,233 | |
| -1 | -13,013,233 |
Let's try dividing by 4:
13,013,233 ÷ 4 = 3,253,308.25
If the quotient is a whole number, then 4 and 3,253,308.25 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 | 13,013,233 | |
| -1 | 13,013,233 |
If you did it right, you will end up with this table:
| 1 | 19 | 37 | 107 | 173 | 703 | 2,033 | 3,287 | 3,959 | 6,401 | 18,511 | 75,221 | 121,619 | 351,709 | 684,907 | 13,013,233 |
| -1 | -19 | -37 | -107 | -173 | -703 | -2,033 | -3,287 | -3,959 | -6,401 | -18,511 | -75,221 | -121,619 | -351,709 | -684,907 | -13,013,233 |
Here are some more numbers to try:
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