A:
Positive:
1 x 1788381255 x 3576762525 x 7153525125 x 1430705277 x 645625625 x 2861411033 x 1731251385 x 1291255165 x 346256925 x 25825
Negative:
-1 x -178838125-5 x -35767625-25 x -7153525-125 x -1430705-277 x -645625-625 x -286141-1033 x -173125-1385 x -129125-5165 x -34625-6925 x -25825
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 178,838,125, 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 | 178,838,125 | |
| -1 | -178,838,125 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 178,838,125.
Example:
1 x 178,838,125 = 178,838,125
and
-1 x -178,838,125 = 178,838,125
Notice both answers equal 178,838,125
With that explanation out of the way, let's continue. Next, we take the number 178,838,125 and divide it by 2:
178,838,125 ÷ 2 = 89,419,062.5
If the quotient is a whole number, then 2 and 89,419,062.5 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 | 178,838,125 | |
| -1 | -178,838,125 |
Now, we try dividing 178,838,125 by 3:
178,838,125 ÷ 3 = 59,612,708.3333
If the quotient is a whole number, then 3 and 59,612,708.3333 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 | 178,838,125 | |
| -1 | -178,838,125 |
Let's try dividing by 4:
178,838,125 ÷ 4 = 44,709,531.25
If the quotient is a whole number, then 4 and 44,709,531.25 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 | 178,838,125 | |
| -1 | 178,838,125 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 125 | 277 | 625 | 1,033 | 1,385 | 5,165 | 6,925 | 25,825 | 34,625 | 129,125 | 173,125 | 286,141 | 645,625 | 1,430,705 | 7,153,525 | 35,767,625 | 178,838,125 |
| -1 | -5 | -25 | -125 | -277 | -625 | -1,033 | -1,385 | -5,165 | -6,925 | -25,825 | -34,625 | -129,125 | -173,125 | -286,141 | -645,625 | -1,430,705 | -7,153,525 | -35,767,625 | -178,838,125 |
Here are some more numbers to try:
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