A:
Positive:
1 x 5157372555 x 10314745111 x 4688520555 x 937704171 x 7263905355 x 1452781781 x 6603553905 x 132071
Negative:
-1 x -515737255-5 x -103147451-11 x -46885205-55 x -9377041-71 x -7263905-355 x -1452781-781 x -660355-3905 x -132071
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 515,737,255, 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 | 515,737,255 | |
| -1 | -515,737,255 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 515,737,255.
Example:
1 x 515,737,255 = 515,737,255
and
-1 x -515,737,255 = 515,737,255
Notice both answers equal 515,737,255
With that explanation out of the way, let's continue. Next, we take the number 515,737,255 and divide it by 2:
515,737,255 ÷ 2 = 257,868,627.5
If the quotient is a whole number, then 2 and 257,868,627.5 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 | 515,737,255 | |
| -1 | -515,737,255 |
Now, we try dividing 515,737,255 by 3:
515,737,255 ÷ 3 = 171,912,418.3333
If the quotient is a whole number, then 3 and 171,912,418.3333 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 | 515,737,255 | |
| -1 | -515,737,255 |
Let's try dividing by 4:
515,737,255 ÷ 4 = 128,934,313.75
If the quotient is a whole number, then 4 and 128,934,313.75 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 | 515,737,255 | |
| -1 | 515,737,255 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 71 | 355 | 781 | 3,905 | 132,071 | 660,355 | 1,452,781 | 7,263,905 | 9,377,041 | 46,885,205 | 103,147,451 | 515,737,255 |
| -1 | -5 | -11 | -55 | -71 | -355 | -781 | -3,905 | -132,071 | -660,355 | -1,452,781 | -7,263,905 | -9,377,041 | -46,885,205 | -103,147,451 | -515,737,255 |
Here are some more numbers to try:
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