A:
Positive:
1 x 197586255 x 395172525 x 79034531 x 637375125 x 158069155 x 127475775 x 254953875 x 5099
Negative:
-1 x -19758625-5 x -3951725-25 x -790345-31 x -637375-125 x -158069-155 x -127475-775 x -25495-3875 x -5099
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 19,758,625, 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 | 19,758,625 | |
| -1 | -19,758,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 19,758,625.
Example:
1 x 19,758,625 = 19,758,625
and
-1 x -19,758,625 = 19,758,625
Notice both answers equal 19,758,625
With that explanation out of the way, let's continue. Next, we take the number 19,758,625 and divide it by 2:
19,758,625 ÷ 2 = 9,879,312.5
If the quotient is a whole number, then 2 and 9,879,312.5 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 | 19,758,625 | |
| -1 | -19,758,625 |
Now, we try dividing 19,758,625 by 3:
19,758,625 ÷ 3 = 6,586,208.3333
If the quotient is a whole number, then 3 and 6,586,208.3333 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 | 19,758,625 | |
| -1 | -19,758,625 |
Let's try dividing by 4:
19,758,625 ÷ 4 = 4,939,656.25
If the quotient is a whole number, then 4 and 4,939,656.25 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 | 19,758,625 | |
| -1 | 19,758,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 31 | 125 | 155 | 775 | 3,875 | 5,099 | 25,495 | 127,475 | 158,069 | 637,375 | 790,345 | 3,951,725 | 19,758,625 |
| -1 | -5 | -25 | -31 | -125 | -155 | -775 | -3,875 | -5,099 | -25,495 | -127,475 | -158,069 | -637,375 | -790,345 | -3,951,725 | -19,758,625 |
Here are some more numbers to try:
Try the factor calculator