A:
Positive:
1 x 152701255 x 305402513 x 117462525 x 61080565 x 234925125 x 122161325 x 469851625 x 9397
Negative:
-1 x -15270125-5 x -3054025-13 x -1174625-25 x -610805-65 x -234925-125 x -122161-325 x -46985-1625 x -9397
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 15,270,125, 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 | 15,270,125 | |
| -1 | -15,270,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,270,125.
Example:
1 x 15,270,125 = 15,270,125
and
-1 x -15,270,125 = 15,270,125
Notice both answers equal 15,270,125
With that explanation out of the way, let's continue. Next, we take the number 15,270,125 and divide it by 2:
15,270,125 ÷ 2 = 7,635,062.5
If the quotient is a whole number, then 2 and 7,635,062.5 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 | 15,270,125 | |
| -1 | -15,270,125 |
Now, we try dividing 15,270,125 by 3:
15,270,125 ÷ 3 = 5,090,041.6667
If the quotient is a whole number, then 3 and 5,090,041.6667 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 | 15,270,125 | |
| -1 | -15,270,125 |
Let's try dividing by 4:
15,270,125 ÷ 4 = 3,817,531.25
If the quotient is a whole number, then 4 and 3,817,531.25 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 | 15,270,125 | |
| -1 | 15,270,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 125 | 325 | 1,625 | 9,397 | 46,985 | 122,161 | 234,925 | 610,805 | 1,174,625 | 3,054,025 | 15,270,125 |
| -1 | -5 | -13 | -25 | -65 | -125 | -325 | -1,625 | -9,397 | -46,985 | -122,161 | -234,925 | -610,805 | -1,174,625 | -3,054,025 | -15,270,125 |
Here are some more numbers to try:
Try the factor calculator