A:
Positive:
1 x 571237155 x 1142474311 x 519306555 x 103861379 x 723085395 x 144617869 x 657354345 x 13147
Negative:
-1 x -57123715-5 x -11424743-11 x -5193065-55 x -1038613-79 x -723085-395 x -144617-869 x -65735-4345 x -13147
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 57,123,715, 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 | 57,123,715 | |
| -1 | -57,123,715 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 57,123,715.
Example:
1 x 57,123,715 = 57,123,715
and
-1 x -57,123,715 = 57,123,715
Notice both answers equal 57,123,715
With that explanation out of the way, let's continue. Next, we take the number 57,123,715 and divide it by 2:
57,123,715 ÷ 2 = 28,561,857.5
If the quotient is a whole number, then 2 and 28,561,857.5 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 | 57,123,715 | |
| -1 | -57,123,715 |
Now, we try dividing 57,123,715 by 3:
57,123,715 ÷ 3 = 19,041,238.3333
If the quotient is a whole number, then 3 and 19,041,238.3333 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 | 57,123,715 | |
| -1 | -57,123,715 |
Let's try dividing by 4:
57,123,715 ÷ 4 = 14,280,928.75
If the quotient is a whole number, then 4 and 14,280,928.75 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 | 57,123,715 | |
| -1 | 57,123,715 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 79 | 395 | 869 | 4,345 | 13,147 | 65,735 | 144,617 | 723,085 | 1,038,613 | 5,193,065 | 11,424,743 | 57,123,715 |
| -1 | -5 | -11 | -55 | -79 | -395 | -869 | -4,345 | -13,147 | -65,735 | -144,617 | -723,085 | -1,038,613 | -5,193,065 | -11,424,743 | -57,123,715 |
Here are some more numbers to try:
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