A:
Positive:
1 x 132416055 x 264832113 x 101858565 x 203717101 x 131105505 x 262211313 x 100852017 x 6565
Negative:
-1 x -13241605-5 x -2648321-13 x -1018585-65 x -203717-101 x -131105-505 x -26221-1313 x -10085-2017 x -6565
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 13,241,605, 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 | 13,241,605 | |
| -1 | -13,241,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,241,605.
Example:
1 x 13,241,605 = 13,241,605
and
-1 x -13,241,605 = 13,241,605
Notice both answers equal 13,241,605
With that explanation out of the way, let's continue. Next, we take the number 13,241,605 and divide it by 2:
13,241,605 ÷ 2 = 6,620,802.5
If the quotient is a whole number, then 2 and 6,620,802.5 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 | 13,241,605 | |
| -1 | -13,241,605 |
Now, we try dividing 13,241,605 by 3:
13,241,605 ÷ 3 = 4,413,868.3333
If the quotient is a whole number, then 3 and 4,413,868.3333 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 | 13,241,605 | |
| -1 | -13,241,605 |
Let's try dividing by 4:
13,241,605 ÷ 4 = 3,310,401.25
If the quotient is a whole number, then 4 and 3,310,401.25 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 | 13,241,605 | |
| -1 | 13,241,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 101 | 505 | 1,313 | 2,017 | 6,565 | 10,085 | 26,221 | 131,105 | 203,717 | 1,018,585 | 2,648,321 | 13,241,605 |
| -1 | -5 | -13 | -65 | -101 | -505 | -1,313 | -2,017 | -6,565 | -10,085 | -26,221 | -131,105 | -203,717 | -1,018,585 | -2,648,321 | -13,241,605 |
Here are some more numbers to try:
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