A:
Positive:
1 x 391250955 x 782501937 x 105743561 x 641395185 x 211487305 x 1282792257 x 173353467 x 11285
Negative:
-1 x -39125095-5 x -7825019-37 x -1057435-61 x -641395-185 x -211487-305 x -128279-2257 x -17335-3467 x -11285
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 39,125,095, 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 | 39,125,095 | |
| -1 | -39,125,095 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,125,095.
Example:
1 x 39,125,095 = 39,125,095
and
-1 x -39,125,095 = 39,125,095
Notice both answers equal 39,125,095
With that explanation out of the way, let's continue. Next, we take the number 39,125,095 and divide it by 2:
39,125,095 ÷ 2 = 19,562,547.5
If the quotient is a whole number, then 2 and 19,562,547.5 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 | 39,125,095 | |
| -1 | -39,125,095 |
Now, we try dividing 39,125,095 by 3:
39,125,095 ÷ 3 = 13,041,698.3333
If the quotient is a whole number, then 3 and 13,041,698.3333 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 | 39,125,095 | |
| -1 | -39,125,095 |
Let's try dividing by 4:
39,125,095 ÷ 4 = 9,781,273.75
If the quotient is a whole number, then 4 and 9,781,273.75 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 | 39,125,095 | |
| -1 | 39,125,095 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 61 | 185 | 305 | 2,257 | 3,467 | 11,285 | 17,335 | 128,279 | 211,487 | 641,395 | 1,057,435 | 7,825,019 | 39,125,095 |
| -1 | -5 | -37 | -61 | -185 | -305 | -2,257 | -3,467 | -11,285 | -17,335 | -128,279 | -211,487 | -641,395 | -1,057,435 | -7,825,019 | -39,125,095 |
Here are some more numbers to try:
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