A:
Positive:
1 x 901044417 x 1287206319 x 4742339133 x 677477191 x 4717511337 x 673933547 x 254033629 x 24829
Negative:
-1 x -90104441-7 x -12872063-19 x -4742339-133 x -677477-191 x -471751-1337 x -67393-3547 x -25403-3629 x -24829
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 90,104,441, 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 | 90,104,441 | |
| -1 | -90,104,441 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 90,104,441.
Example:
1 x 90,104,441 = 90,104,441
and
-1 x -90,104,441 = 90,104,441
Notice both answers equal 90,104,441
With that explanation out of the way, let's continue. Next, we take the number 90,104,441 and divide it by 2:
90,104,441 ÷ 2 = 45,052,220.5
If the quotient is a whole number, then 2 and 45,052,220.5 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 | 90,104,441 | |
| -1 | -90,104,441 |
Now, we try dividing 90,104,441 by 3:
90,104,441 ÷ 3 = 30,034,813.6667
If the quotient is a whole number, then 3 and 30,034,813.6667 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 | 90,104,441 | |
| -1 | -90,104,441 |
Let's try dividing by 4:
90,104,441 ÷ 4 = 22,526,110.25
If the quotient is a whole number, then 4 and 22,526,110.25 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 | 90,104,441 | |
| -1 | 90,104,441 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 191 | 1,337 | 3,547 | 3,629 | 24,829 | 25,403 | 67,393 | 471,751 | 677,477 | 4,742,339 | 12,872,063 | 90,104,441 |
| -1 | -7 | -19 | -133 | -191 | -1,337 | -3,547 | -3,629 | -24,829 | -25,403 | -67,393 | -471,751 | -677,477 | -4,742,339 | -12,872,063 | -90,104,441 |
Here are some more numbers to try:
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