A:
Positive:
1 x 2817663555 x 5635327113 x 2167433565 x 4334867241 x 11691551205 x 2338313133 x 8993515665 x 17987
Negative:
-1 x -281766355-5 x -56353271-13 x -21674335-65 x -4334867-241 x -1169155-1205 x -233831-3133 x -89935-15665 x -17987
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 281,766,355, 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 | 281,766,355 | |
| -1 | -281,766,355 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 281,766,355.
Example:
1 x 281,766,355 = 281,766,355
and
-1 x -281,766,355 = 281,766,355
Notice both answers equal 281,766,355
With that explanation out of the way, let's continue. Next, we take the number 281,766,355 and divide it by 2:
281,766,355 ÷ 2 = 140,883,177.5
If the quotient is a whole number, then 2 and 140,883,177.5 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 | 281,766,355 | |
| -1 | -281,766,355 |
Now, we try dividing 281,766,355 by 3:
281,766,355 ÷ 3 = 93,922,118.3333
If the quotient is a whole number, then 3 and 93,922,118.3333 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 | 281,766,355 | |
| -1 | -281,766,355 |
Let's try dividing by 4:
281,766,355 ÷ 4 = 70,441,588.75
If the quotient is a whole number, then 4 and 70,441,588.75 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 | 281,766,355 | |
| -1 | 281,766,355 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 241 | 1,205 | 3,133 | 15,665 | 17,987 | 89,935 | 233,831 | 1,169,155 | 4,334,867 | 21,674,335 | 56,353,271 | 281,766,355 |
| -1 | -5 | -13 | -65 | -241 | -1,205 | -3,133 | -15,665 | -17,987 | -89,935 | -233,831 | -1,169,155 | -4,334,867 | -21,674,335 | -56,353,271 | -281,766,355 |
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