A:
Positive:
1 x 725143255 x 1450286513 x 557802525 x 290057365 x 1115605325 x 223121347 x 208975643 x 1127751735 x 417953215 x 225554511 x 160758359 x 8675
Negative:
-1 x -72514325-5 x -14502865-13 x -5578025-25 x -2900573-65 x -1115605-325 x -223121-347 x -208975-643 x -112775-1735 x -41795-3215 x -22555-4511 x -16075-8359 x -8675
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 72,514,325, 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 | 72,514,325 | |
| -1 | -72,514,325 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,514,325.
Example:
1 x 72,514,325 = 72,514,325
and
-1 x -72,514,325 = 72,514,325
Notice both answers equal 72,514,325
With that explanation out of the way, let's continue. Next, we take the number 72,514,325 and divide it by 2:
72,514,325 ÷ 2 = 36,257,162.5
If the quotient is a whole number, then 2 and 36,257,162.5 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 | 72,514,325 | |
| -1 | -72,514,325 |
Now, we try dividing 72,514,325 by 3:
72,514,325 ÷ 3 = 24,171,441.6667
If the quotient is a whole number, then 3 and 24,171,441.6667 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 | 72,514,325 | |
| -1 | -72,514,325 |
Let's try dividing by 4:
72,514,325 ÷ 4 = 18,128,581.25
If the quotient is a whole number, then 4 and 18,128,581.25 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 | 72,514,325 | |
| -1 | 72,514,325 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 25 | 65 | 325 | 347 | 643 | 1,735 | 3,215 | 4,511 | 8,359 | 8,675 | 16,075 | 22,555 | 41,795 | 112,775 | 208,975 | 223,121 | 1,115,605 | 2,900,573 | 5,578,025 | 14,502,865 | 72,514,325 |
| -1 | -5 | -13 | -25 | -65 | -325 | -347 | -643 | -1,735 | -3,215 | -4,511 | -8,359 | -8,675 | -16,075 | -22,555 | -41,795 | -112,775 | -208,975 | -223,121 | -1,115,605 | -2,900,573 | -5,578,025 | -14,502,865 | -72,514,325 |
Here are some more numbers to try:
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