A:
Positive:
1 x 7283757117 x 428456337 x 196858343 x 1693897629 x 115799731 x 996411591 x 457812693 x 27047
Negative:
-1 x -72837571-17 x -4284563-37 x -1968583-43 x -1693897-629 x -115799-731 x -99641-1591 x -45781-2693 x -27047
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 72,837,571, 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 | 72,837,571 | |
| -1 | -72,837,571 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 72,837,571.
Example:
1 x 72,837,571 = 72,837,571
and
-1 x -72,837,571 = 72,837,571
Notice both answers equal 72,837,571
With that explanation out of the way, let's continue. Next, we take the number 72,837,571 and divide it by 2:
72,837,571 ÷ 2 = 36,418,785.5
If the quotient is a whole number, then 2 and 36,418,785.5 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 | 72,837,571 | |
| -1 | -72,837,571 |
Now, we try dividing 72,837,571 by 3:
72,837,571 ÷ 3 = 24,279,190.3333
If the quotient is a whole number, then 3 and 24,279,190.3333 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 | 72,837,571 | |
| -1 | -72,837,571 |
Let's try dividing by 4:
72,837,571 ÷ 4 = 18,209,392.75
If the quotient is a whole number, then 4 and 18,209,392.75 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 | 72,837,571 | |
| -1 | 72,837,571 |
If you did it right, you will end up with this table:
| 1 | 17 | 37 | 43 | 629 | 731 | 1,591 | 2,693 | 27,047 | 45,781 | 99,641 | 115,799 | 1,693,897 | 1,968,583 | 4,284,563 | 72,837,571 |
| -1 | -17 | -37 | -43 | -629 | -731 | -1,591 | -2,693 | -27,047 | -45,781 | -99,641 | -115,799 | -1,693,897 | -1,968,583 | -4,284,563 | -72,837,571 |
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