A:
Positive:
1 x 6232111255 x 12464222525 x 24928445125 x 4985689149 x 4182625745 x 8365253725 x 16730518625 x 33461
Negative:
-1 x -623211125-5 x -124642225-25 x -24928445-125 x -4985689-149 x -4182625-745 x -836525-3725 x -167305-18625 x -33461
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 623,211,125, 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 | 623,211,125 | |
| -1 | -623,211,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 623,211,125.
Example:
1 x 623,211,125 = 623,211,125
and
-1 x -623,211,125 = 623,211,125
Notice both answers equal 623,211,125
With that explanation out of the way, let's continue. Next, we take the number 623,211,125 and divide it by 2:
623,211,125 ÷ 2 = 311,605,562.5
If the quotient is a whole number, then 2 and 311,605,562.5 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 | 623,211,125 | |
| -1 | -623,211,125 |
Now, we try dividing 623,211,125 by 3:
623,211,125 ÷ 3 = 207,737,041.6667
If the quotient is a whole number, then 3 and 207,737,041.6667 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 | 623,211,125 | |
| -1 | -623,211,125 |
Let's try dividing by 4:
623,211,125 ÷ 4 = 155,802,781.25
If the quotient is a whole number, then 4 and 155,802,781.25 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 | 623,211,125 | |
| -1 | 623,211,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 149 | 745 | 3,725 | 18,625 | 33,461 | 167,305 | 836,525 | 4,182,625 | 4,985,689 | 24,928,445 | 124,642,225 | 623,211,125 |
| -1 | -5 | -25 | -125 | -149 | -745 | -3,725 | -18,625 | -33,461 | -167,305 | -836,525 | -4,182,625 | -4,985,689 | -24,928,445 | -124,642,225 | -623,211,125 |
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