A:
Positive:
1 x 152506255 x 305012513 x 117312525 x 61002565 x 234625125 x 122005325 x 46925625 x 244011625 x 93851877 x 8125
Negative:
-1 x -15250625-5 x -3050125-13 x -1173125-25 x -610025-65 x -234625-125 x -122005-325 x -46925-625 x -24401-1625 x -9385-1877 x -8125
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 15,250,625, 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 | 15,250,625 | |
| -1 | -15,250,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 15,250,625.
Example:
1 x 15,250,625 = 15,250,625
and
-1 x -15,250,625 = 15,250,625
Notice both answers equal 15,250,625
With that explanation out of the way, let's continue. Next, we take the number 15,250,625 and divide it by 2:
15,250,625 ÷ 2 = 7,625,312.5
If the quotient is a whole number, then 2 and 7,625,312.5 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 | 15,250,625 | |
| -1 | -15,250,625 |
Now, we try dividing 15,250,625 by 3:
15,250,625 ÷ 3 = 5,083,541.6667
If the quotient is a whole number, then 3 and 5,083,541.6667 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 | 15,250,625 | |
| -1 | -15,250,625 |
Let's try dividing by 4:
15,250,625 ÷ 4 = 3,812,656.25
If the quotient is a whole number, then 4 and 3,812,656.25 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 | 15,250,625 | |
| -1 | 15,250,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 125 | 325 | 625 | 1,625 | 1,877 | 8,125 | 9,385 | 24,401 | 46,925 | 122,005 | 234,625 | 610,025 | 1,173,125 | 3,050,125 | 15,250,625 |
| -1 | -5 | -13 | -25 | -65 | -125 | -325 | -625 | -1,625 | -1,877 | -8,125 | -9,385 | -24,401 | -46,925 | -122,005 | -234,625 | -610,025 | -1,173,125 | -3,050,125 | -15,250,625 |
Here are some more numbers to try:
Try the factor calculator