A:
Positive:
1 x 109009455 x 218018911 x 99099547 x 23193555 x 198199235 x 46387517 x 210852585 x 4217
Negative:
-1 x -10900945-5 x -2180189-11 x -990995-47 x -231935-55 x -198199-235 x -46387-517 x -21085-2585 x -4217
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 10,900,945, 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 | 10,900,945 | |
| -1 | -10,900,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,900,945.
Example:
1 x 10,900,945 = 10,900,945
and
-1 x -10,900,945 = 10,900,945
Notice both answers equal 10,900,945
With that explanation out of the way, let's continue. Next, we take the number 10,900,945 and divide it by 2:
10,900,945 ÷ 2 = 5,450,472.5
If the quotient is a whole number, then 2 and 5,450,472.5 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 | 10,900,945 | |
| -1 | -10,900,945 |
Now, we try dividing 10,900,945 by 3:
10,900,945 ÷ 3 = 3,633,648.3333
If the quotient is a whole number, then 3 and 3,633,648.3333 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 | 10,900,945 | |
| -1 | -10,900,945 |
Let's try dividing by 4:
10,900,945 ÷ 4 = 2,725,236.25
If the quotient is a whole number, then 4 and 2,725,236.25 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 | 10,900,945 | |
| -1 | 10,900,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 47 | 55 | 235 | 517 | 2,585 | 4,217 | 21,085 | 46,387 | 198,199 | 231,935 | 990,995 | 2,180,189 | 10,900,945 |
| -1 | -5 | -11 | -47 | -55 | -235 | -517 | -2,585 | -4,217 | -21,085 | -46,387 | -198,199 | -231,935 | -990,995 | -2,180,189 | -10,900,945 |
Here are some more numbers to try:
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