A:
Positive:
1 x 25156255 x 5031257 x 35937523 x 10937525 x 10062535 x 71875115 x 21875125 x 20125161 x 15625175 x 14375575 x 4375625 x 4025805 x 3125875 x 2875
Negative:
-1 x -2515625-5 x -503125-7 x -359375-23 x -109375-25 x -100625-35 x -71875-115 x -21875-125 x -20125-161 x -15625-175 x -14375-575 x -4375-625 x -4025-805 x -3125-875 x -2875
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 2,515,625, 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 | 2,515,625 | |
| -1 | -2,515,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,515,625.
Example:
1 x 2,515,625 = 2,515,625
and
-1 x -2,515,625 = 2,515,625
Notice both answers equal 2,515,625
With that explanation out of the way, let's continue. Next, we take the number 2,515,625 and divide it by 2:
2,515,625 ÷ 2 = 1,257,812.5
If the quotient is a whole number, then 2 and 1,257,812.5 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 | 2,515,625 | |
| -1 | -2,515,625 |
Now, we try dividing 2,515,625 by 3:
2,515,625 ÷ 3 = 838,541.6667
If the quotient is a whole number, then 3 and 838,541.6667 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 | 2,515,625 | |
| -1 | -2,515,625 |
Let's try dividing by 4:
2,515,625 ÷ 4 = 628,906.25
If the quotient is a whole number, then 4 and 628,906.25 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 | 2,515,625 | |
| -1 | 2,515,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 25 | 35 | 115 | 125 | 161 | 175 | 575 | 625 | 805 | 875 | 2,875 | 3,125 | 4,025 | 4,375 | 14,375 | 15,625 | 20,125 | 21,875 | 71,875 | 100,625 | 109,375 | 359,375 | 503,125 | 2,515,625 |
| -1 | -5 | -7 | -23 | -25 | -35 | -115 | -125 | -161 | -175 | -575 | -625 | -805 | -875 | -2,875 | -3,125 | -4,025 | -4,375 | -14,375 | -15,625 | -20,125 | -21,875 | -71,875 | -100,625 | -109,375 | -359,375 | -503,125 | -2,515,625 |
Here are some more numbers to try:
Try the factor calculator