A:
Positive:
1 x 1087737855 x 2175475723 x 4729295115 x 945859613 x 1774451543 x 704953065 x 354897715 x 14099
Negative:
-1 x -108773785-5 x -21754757-23 x -4729295-115 x -945859-613 x -177445-1543 x -70495-3065 x -35489-7715 x -14099
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 108,773,785, 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 | 108,773,785 | |
| -1 | -108,773,785 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 108,773,785.
Example:
1 x 108,773,785 = 108,773,785
and
-1 x -108,773,785 = 108,773,785
Notice both answers equal 108,773,785
With that explanation out of the way, let's continue. Next, we take the number 108,773,785 and divide it by 2:
108,773,785 ÷ 2 = 54,386,892.5
If the quotient is a whole number, then 2 and 54,386,892.5 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 | 108,773,785 | |
| -1 | -108,773,785 |
Now, we try dividing 108,773,785 by 3:
108,773,785 ÷ 3 = 36,257,928.3333
If the quotient is a whole number, then 3 and 36,257,928.3333 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 | 108,773,785 | |
| -1 | -108,773,785 |
Let's try dividing by 4:
108,773,785 ÷ 4 = 27,193,446.25
If the quotient is a whole number, then 4 and 27,193,446.25 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 | 108,773,785 | |
| -1 | 108,773,785 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 613 | 1,543 | 3,065 | 7,715 | 14,099 | 35,489 | 70,495 | 177,445 | 945,859 | 4,729,295 | 21,754,757 | 108,773,785 |
| -1 | -5 | -23 | -115 | -613 | -1,543 | -3,065 | -7,715 | -14,099 | -35,489 | -70,495 | -177,445 | -945,859 | -4,729,295 | -21,754,757 | -108,773,785 |
Here are some more numbers to try:
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