A:
Positive:
1 x 1023123055 x 20462461109 x 938645227 x 450715545 x 187729827 x 1237151135 x 901434135 x 24743
Negative:
-1 x -102312305-5 x -20462461-109 x -938645-227 x -450715-545 x -187729-827 x -123715-1135 x -90143-4135 x -24743
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 102,312,305, 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 | 102,312,305 | |
| -1 | -102,312,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,312,305.
Example:
1 x 102,312,305 = 102,312,305
and
-1 x -102,312,305 = 102,312,305
Notice both answers equal 102,312,305
With that explanation out of the way, let's continue. Next, we take the number 102,312,305 and divide it by 2:
102,312,305 ÷ 2 = 51,156,152.5
If the quotient is a whole number, then 2 and 51,156,152.5 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 | 102,312,305 | |
| -1 | -102,312,305 |
Now, we try dividing 102,312,305 by 3:
102,312,305 ÷ 3 = 34,104,101.6667
If the quotient is a whole number, then 3 and 34,104,101.6667 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 | 102,312,305 | |
| -1 | -102,312,305 |
Let's try dividing by 4:
102,312,305 ÷ 4 = 25,578,076.25
If the quotient is a whole number, then 4 and 25,578,076.25 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 | 102,312,305 | |
| -1 | 102,312,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 109 | 227 | 545 | 827 | 1,135 | 4,135 | 24,743 | 90,143 | 123,715 | 187,729 | 450,715 | 938,645 | 20,462,461 | 102,312,305 |
| -1 | -5 | -109 | -227 | -545 | -827 | -1,135 | -4,135 | -24,743 | -90,143 | -123,715 | -187,729 | -450,715 | -938,645 | -20,462,461 | -102,312,305 |
Here are some more numbers to try:
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