A:
Positive:
1 x 386577255 x 773154525 x 154630929 x 133302571 x 544475145 x 266605355 x 108895725 x 53321751 x 514751775 x 217792059 x 187753755 x 10295
Negative:
-1 x -38657725-5 x -7731545-25 x -1546309-29 x -1333025-71 x -544475-145 x -266605-355 x -108895-725 x -53321-751 x -51475-1775 x -21779-2059 x -18775-3755 x -10295
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 38,657,725, 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 | 38,657,725 | |
| -1 | -38,657,725 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 38,657,725.
Example:
1 x 38,657,725 = 38,657,725
and
-1 x -38,657,725 = 38,657,725
Notice both answers equal 38,657,725
With that explanation out of the way, let's continue. Next, we take the number 38,657,725 and divide it by 2:
38,657,725 ÷ 2 = 19,328,862.5
If the quotient is a whole number, then 2 and 19,328,862.5 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 | 38,657,725 | |
| -1 | -38,657,725 |
Now, we try dividing 38,657,725 by 3:
38,657,725 ÷ 3 = 12,885,908.3333
If the quotient is a whole number, then 3 and 12,885,908.3333 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 | 38,657,725 | |
| -1 | -38,657,725 |
Let's try dividing by 4:
38,657,725 ÷ 4 = 9,664,431.25
If the quotient is a whole number, then 4 and 9,664,431.25 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 | 38,657,725 | |
| -1 | 38,657,725 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 29 | 71 | 145 | 355 | 725 | 751 | 1,775 | 2,059 | 3,755 | 10,295 | 18,775 | 21,779 | 51,475 | 53,321 | 108,895 | 266,605 | 544,475 | 1,333,025 | 1,546,309 | 7,731,545 | 38,657,725 |
| -1 | -5 | -25 | -29 | -71 | -145 | -355 | -725 | -751 | -1,775 | -2,059 | -3,755 | -10,295 | -18,775 | -21,779 | -51,475 | -53,321 | -108,895 | -266,605 | -544,475 | -1,333,025 | -1,546,309 | -7,731,545 | -38,657,725 |
Here are some more numbers to try:
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