A:
Positive:
1 x 728256255 x 1456512525 x 2913025109 x 668125125 x 582605545 x 133625625 x 1165211069 x 681252725 x 267255345 x 13625
Negative:
-1 x -72825625-5 x -14565125-25 x -2913025-109 x -668125-125 x -582605-545 x -133625-625 x -116521-1069 x -68125-2725 x -26725-5345 x -13625
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 72,825,625, 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 | 72,825,625 | |
| -1 | -72,825,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,825,625.
Example:
1 x 72,825,625 = 72,825,625
and
-1 x -72,825,625 = 72,825,625
Notice both answers equal 72,825,625
With that explanation out of the way, let's continue. Next, we take the number 72,825,625 and divide it by 2:
72,825,625 ÷ 2 = 36,412,812.5
If the quotient is a whole number, then 2 and 36,412,812.5 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 | 72,825,625 | |
| -1 | -72,825,625 |
Now, we try dividing 72,825,625 by 3:
72,825,625 ÷ 3 = 24,275,208.3333
If the quotient is a whole number, then 3 and 24,275,208.3333 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 | 72,825,625 | |
| -1 | -72,825,625 |
Let's try dividing by 4:
72,825,625 ÷ 4 = 18,206,406.25
If the quotient is a whole number, then 4 and 18,206,406.25 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 | 72,825,625 | |
| -1 | 72,825,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 109 | 125 | 545 | 625 | 1,069 | 2,725 | 5,345 | 13,625 | 26,725 | 68,125 | 116,521 | 133,625 | 582,605 | 668,125 | 2,913,025 | 14,565,125 | 72,825,625 |
| -1 | -5 | -25 | -109 | -125 | -545 | -625 | -1,069 | -2,725 | -5,345 | -13,625 | -26,725 | -68,125 | -116,521 | -133,625 | -582,605 | -668,125 | -2,913,025 | -14,565,125 | -72,825,625 |
Here are some more numbers to try:
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