A:
Positive:
1 x 1238930655 x 2477861323 x 538665553 x 2337605115 x 1077331265 x 4675211219 x 1016356095 x 20327
Negative:
-1 x -123893065-5 x -24778613-23 x -5386655-53 x -2337605-115 x -1077331-265 x -467521-1219 x -101635-6095 x -20327
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 123,893,065, 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 | 123,893,065 | |
| -1 | -123,893,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 123,893,065.
Example:
1 x 123,893,065 = 123,893,065
and
-1 x -123,893,065 = 123,893,065
Notice both answers equal 123,893,065
With that explanation out of the way, let's continue. Next, we take the number 123,893,065 and divide it by 2:
123,893,065 ÷ 2 = 61,946,532.5
If the quotient is a whole number, then 2 and 61,946,532.5 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 | 123,893,065 | |
| -1 | -123,893,065 |
Now, we try dividing 123,893,065 by 3:
123,893,065 ÷ 3 = 41,297,688.3333
If the quotient is a whole number, then 3 and 41,297,688.3333 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 | 123,893,065 | |
| -1 | -123,893,065 |
Let's try dividing by 4:
123,893,065 ÷ 4 = 30,973,266.25
If the quotient is a whole number, then 4 and 30,973,266.25 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 | 123,893,065 | |
| -1 | 123,893,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 53 | 115 | 265 | 1,219 | 6,095 | 20,327 | 101,635 | 467,521 | 1,077,331 | 2,337,605 | 5,386,655 | 24,778,613 | 123,893,065 |
| -1 | -5 | -23 | -53 | -115 | -265 | -1,219 | -6,095 | -20,327 | -101,635 | -467,521 | -1,077,331 | -2,337,605 | -5,386,655 | -24,778,613 | -123,893,065 |
Here are some more numbers to try:
Try the factor calculator