A:
Positive:
1 x 6116551255 x 12233102519 x 3219237525 x 2446620595 x 6438475125 x 4893241475 x 12876952375 x 257539
Negative:
-1 x -611655125-5 x -122331025-19 x -32192375-25 x -24466205-95 x -6438475-125 x -4893241-475 x -1287695-2375 x -257539
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 611,655,125, 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 | 611,655,125 | |
| -1 | -611,655,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 611,655,125.
Example:
1 x 611,655,125 = 611,655,125
and
-1 x -611,655,125 = 611,655,125
Notice both answers equal 611,655,125
With that explanation out of the way, let's continue. Next, we take the number 611,655,125 and divide it by 2:
611,655,125 ÷ 2 = 305,827,562.5
If the quotient is a whole number, then 2 and 305,827,562.5 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 | 611,655,125 | |
| -1 | -611,655,125 |
Now, we try dividing 611,655,125 by 3:
611,655,125 ÷ 3 = 203,885,041.6667
If the quotient is a whole number, then 3 and 203,885,041.6667 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 | 611,655,125 | |
| -1 | -611,655,125 |
Let's try dividing by 4:
611,655,125 ÷ 4 = 152,913,781.25
If the quotient is a whole number, then 4 and 152,913,781.25 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 | 611,655,125 | |
| -1 | 611,655,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 2,375 | 257,539 | 1,287,695 | 4,893,241 | 6,438,475 | 24,466,205 | 32,192,375 | 122,331,025 | 611,655,125 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -2,375 | -257,539 | -1,287,695 | -4,893,241 | -6,438,475 | -24,466,205 | -32,192,375 | -122,331,025 | -611,655,125 |
Here are some more numbers to try:
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