A:
Positive:
1 x 895731055 x 1791462131 x 2889455155 x 577891317 x 2825651585 x 565131823 x 491359115 x 9827
Negative:
-1 x -89573105-5 x -17914621-31 x -2889455-155 x -577891-317 x -282565-1585 x -56513-1823 x -49135-9115 x -9827
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 89,573,105, 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 | 89,573,105 | |
| -1 | -89,573,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 89,573,105.
Example:
1 x 89,573,105 = 89,573,105
and
-1 x -89,573,105 = 89,573,105
Notice both answers equal 89,573,105
With that explanation out of the way, let's continue. Next, we take the number 89,573,105 and divide it by 2:
89,573,105 ÷ 2 = 44,786,552.5
If the quotient is a whole number, then 2 and 44,786,552.5 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 | 89,573,105 | |
| -1 | -89,573,105 |
Now, we try dividing 89,573,105 by 3:
89,573,105 ÷ 3 = 29,857,701.6667
If the quotient is a whole number, then 3 and 29,857,701.6667 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 | 89,573,105 | |
| -1 | -89,573,105 |
Let's try dividing by 4:
89,573,105 ÷ 4 = 22,393,276.25
If the quotient is a whole number, then 4 and 22,393,276.25 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 | 89,573,105 | |
| -1 | 89,573,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 155 | 317 | 1,585 | 1,823 | 9,115 | 9,827 | 49,135 | 56,513 | 282,565 | 577,891 | 2,889,455 | 17,914,621 | 89,573,105 |
| -1 | -5 | -31 | -155 | -317 | -1,585 | -1,823 | -9,115 | -9,827 | -49,135 | -56,513 | -282,565 | -577,891 | -2,889,455 | -17,914,621 | -89,573,105 |
Here are some more numbers to try:
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