A:
Positive:
1 x 5715513111 x 519592173 x 782947109 x 524359653 x 87527803 x 711771199 x 476697183 x 7957
Negative:
-1 x -57155131-11 x -5195921-73 x -782947-109 x -524359-653 x -87527-803 x -71177-1199 x -47669-7183 x -7957
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 57,155,131, 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 | 57,155,131 | |
| -1 | -57,155,131 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 57,155,131.
Example:
1 x 57,155,131 = 57,155,131
and
-1 x -57,155,131 = 57,155,131
Notice both answers equal 57,155,131
With that explanation out of the way, let's continue. Next, we take the number 57,155,131 and divide it by 2:
57,155,131 ÷ 2 = 28,577,565.5
If the quotient is a whole number, then 2 and 28,577,565.5 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 | 57,155,131 | |
| -1 | -57,155,131 |
Now, we try dividing 57,155,131 by 3:
57,155,131 ÷ 3 = 19,051,710.3333
If the quotient is a whole number, then 3 and 19,051,710.3333 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 | 57,155,131 | |
| -1 | -57,155,131 |
Let's try dividing by 4:
57,155,131 ÷ 4 = 14,288,782.75
If the quotient is a whole number, then 4 and 14,288,782.75 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 | 57,155,131 | |
| -1 | 57,155,131 |
If you did it right, you will end up with this table:
| 1 | 11 | 73 | 109 | 653 | 803 | 1,199 | 7,183 | 7,957 | 47,669 | 71,177 | 87,527 | 524,359 | 782,947 | 5,195,921 | 57,155,131 |
| -1 | -11 | -73 | -109 | -653 | -803 | -1,199 | -7,183 | -7,957 | -47,669 | -71,177 | -87,527 | -524,359 | -782,947 | -5,195,921 | -57,155,131 |
Here are some more numbers to try:
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