A:
Positive:
1 x 272210655 x 544421353 x 513605139 x 195835265 x 102721695 x 39167739 x 368353695 x 7367
Negative:
-1 x -27221065-5 x -5444213-53 x -513605-139 x -195835-265 x -102721-695 x -39167-739 x -36835-3695 x -7367
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 27,221,065, 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 | 27,221,065 | |
| -1 | -27,221,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,221,065.
Example:
1 x 27,221,065 = 27,221,065
and
-1 x -27,221,065 = 27,221,065
Notice both answers equal 27,221,065
With that explanation out of the way, let's continue. Next, we take the number 27,221,065 and divide it by 2:
27,221,065 ÷ 2 = 13,610,532.5
If the quotient is a whole number, then 2 and 13,610,532.5 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 | 27,221,065 | |
| -1 | -27,221,065 |
Now, we try dividing 27,221,065 by 3:
27,221,065 ÷ 3 = 9,073,688.3333
If the quotient is a whole number, then 3 and 9,073,688.3333 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 | 27,221,065 | |
| -1 | -27,221,065 |
Let's try dividing by 4:
27,221,065 ÷ 4 = 6,805,266.25
If the quotient is a whole number, then 4 and 6,805,266.25 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 | 27,221,065 | |
| -1 | 27,221,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 53 | 139 | 265 | 695 | 739 | 3,695 | 7,367 | 36,835 | 39,167 | 102,721 | 195,835 | 513,605 | 5,444,213 | 27,221,065 |
| -1 | -5 | -53 | -139 | -265 | -695 | -739 | -3,695 | -7,367 | -36,835 | -39,167 | -102,721 | -195,835 | -513,605 | -5,444,213 | -27,221,065 |
Here are some more numbers to try:
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