A:
Positive:
1 x 1027424655 x 205484937 x 1467749535 x 293549949 x 2096785137 x 749945245 x 419357685 x 149989959 x 1071353061 x 335654795 x 214276713 x 15305
Negative:
-1 x -102742465-5 x -20548493-7 x -14677495-35 x -2935499-49 x -2096785-137 x -749945-245 x -419357-685 x -149989-959 x -107135-3061 x -33565-4795 x -21427-6713 x -15305
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 102,742,465, 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 | 102,742,465 | |
| -1 | -102,742,465 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 102,742,465.
Example:
1 x 102,742,465 = 102,742,465
and
-1 x -102,742,465 = 102,742,465
Notice both answers equal 102,742,465
With that explanation out of the way, let's continue. Next, we take the number 102,742,465 and divide it by 2:
102,742,465 ÷ 2 = 51,371,232.5
If the quotient is a whole number, then 2 and 51,371,232.5 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 | 102,742,465 | |
| -1 | -102,742,465 |
Now, we try dividing 102,742,465 by 3:
102,742,465 ÷ 3 = 34,247,488.3333
If the quotient is a whole number, then 3 and 34,247,488.3333 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 | 102,742,465 | |
| -1 | -102,742,465 |
Let's try dividing by 4:
102,742,465 ÷ 4 = 25,685,616.25
If the quotient is a whole number, then 4 and 25,685,616.25 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 | 102,742,465 | |
| -1 | 102,742,465 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 137 | 245 | 685 | 959 | 3,061 | 4,795 | 6,713 | 15,305 | 21,427 | 33,565 | 107,135 | 149,989 | 419,357 | 749,945 | 2,096,785 | 2,935,499 | 14,677,495 | 20,548,493 | 102,742,465 |
| -1 | -5 | -7 | -35 | -49 | -137 | -245 | -685 | -959 | -3,061 | -4,795 | -6,713 | -15,305 | -21,427 | -33,565 | -107,135 | -149,989 | -419,357 | -749,945 | -2,096,785 | -2,935,499 | -14,677,495 | -20,548,493 | -102,742,465 |
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