A:
Positive:
1 x 388682755 x 777365523 x 168992525 x 1554731115 x 337985529 x 73475575 x 675972645 x 146952939 x 13225
Negative:
-1 x -38868275-5 x -7773655-23 x -1689925-25 x -1554731-115 x -337985-529 x -73475-575 x -67597-2645 x -14695-2939 x -13225
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 38,868,275, 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 | 38,868,275 | |
| -1 | -38,868,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,868,275.
Example:
1 x 38,868,275 = 38,868,275
and
-1 x -38,868,275 = 38,868,275
Notice both answers equal 38,868,275
With that explanation out of the way, let's continue. Next, we take the number 38,868,275 and divide it by 2:
38,868,275 ÷ 2 = 19,434,137.5
If the quotient is a whole number, then 2 and 19,434,137.5 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 | 38,868,275 | |
| -1 | -38,868,275 |
Now, we try dividing 38,868,275 by 3:
38,868,275 ÷ 3 = 12,956,091.6667
If the quotient is a whole number, then 3 and 12,956,091.6667 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 | 38,868,275 | |
| -1 | -38,868,275 |
Let's try dividing by 4:
38,868,275 ÷ 4 = 9,717,068.75
If the quotient is a whole number, then 4 and 9,717,068.75 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 | 38,868,275 | |
| -1 | 38,868,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 25 | 115 | 529 | 575 | 2,645 | 2,939 | 13,225 | 14,695 | 67,597 | 73,475 | 337,985 | 1,554,731 | 1,689,925 | 7,773,655 | 38,868,275 |
| -1 | -5 | -23 | -25 | -115 | -529 | -575 | -2,645 | -2,939 | -13,225 | -14,695 | -67,597 | -73,475 | -337,985 | -1,554,731 | -1,689,925 | -7,773,655 | -38,868,275 |
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