A:
Positive:
1 x 2728124311 x 248011317 x 160477923 x 1186141187 x 145889253 x 107831391 x 697734301 x 6343
Negative:
-1 x -27281243-11 x -2480113-17 x -1604779-23 x -1186141-187 x -145889-253 x -107831-391 x -69773-4301 x -6343
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 27,281,243, 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 | 27,281,243 | |
| -1 | -27,281,243 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,281,243.
Example:
1 x 27,281,243 = 27,281,243
and
-1 x -27,281,243 = 27,281,243
Notice both answers equal 27,281,243
With that explanation out of the way, let's continue. Next, we take the number 27,281,243 and divide it by 2:
27,281,243 ÷ 2 = 13,640,621.5
If the quotient is a whole number, then 2 and 13,640,621.5 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 | 27,281,243 | |
| -1 | -27,281,243 |
Now, we try dividing 27,281,243 by 3:
27,281,243 ÷ 3 = 9,093,747.6667
If the quotient is a whole number, then 3 and 9,093,747.6667 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 | 27,281,243 | |
| -1 | -27,281,243 |
Let's try dividing by 4:
27,281,243 ÷ 4 = 6,820,310.75
If the quotient is a whole number, then 4 and 6,820,310.75 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 | 27,281,243 | |
| -1 | 27,281,243 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 23 | 187 | 253 | 391 | 4,301 | 6,343 | 69,773 | 107,831 | 145,889 | 1,186,141 | 1,604,779 | 2,480,113 | 27,281,243 |
| -1 | -11 | -17 | -23 | -187 | -253 | -391 | -4,301 | -6,343 | -69,773 | -107,831 | -145,889 | -1,186,141 | -1,604,779 | -2,480,113 | -27,281,243 |
Here are some more numbers to try:
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