A:
Positive:
1 x 1350622123 x 58722737 x 36503359 x 228919269 x 50209851 x 158711357 x 99532183 x 6187
Negative:
-1 x -13506221-23 x -587227-37 x -365033-59 x -228919-269 x -50209-851 x -15871-1357 x -9953-2183 x -6187
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 13,506,221, 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 | 13,506,221 | |
| -1 | -13,506,221 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,506,221.
Example:
1 x 13,506,221 = 13,506,221
and
-1 x -13,506,221 = 13,506,221
Notice both answers equal 13,506,221
With that explanation out of the way, let's continue. Next, we take the number 13,506,221 and divide it by 2:
13,506,221 ÷ 2 = 6,753,110.5
If the quotient is a whole number, then 2 and 6,753,110.5 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 | 13,506,221 | |
| -1 | -13,506,221 |
Now, we try dividing 13,506,221 by 3:
13,506,221 ÷ 3 = 4,502,073.6667
If the quotient is a whole number, then 3 and 4,502,073.6667 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 | 13,506,221 | |
| -1 | -13,506,221 |
Let's try dividing by 4:
13,506,221 ÷ 4 = 3,376,555.25
If the quotient is a whole number, then 4 and 3,376,555.25 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 | 13,506,221 | |
| -1 | 13,506,221 |
If you did it right, you will end up with this table:
| 1 | 23 | 37 | 59 | 269 | 851 | 1,357 | 2,183 | 6,187 | 9,953 | 15,871 | 50,209 | 228,919 | 365,033 | 587,227 | 13,506,221 |
| -1 | -23 | -37 | -59 | -269 | -851 | -1,357 | -2,183 | -6,187 | -9,953 | -15,871 | -50,209 | -228,919 | -365,033 | -587,227 | -13,506,221 |
Here are some more numbers to try:
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