A:
Positive:
1 x 3175401655 x 6350803343 x 7384655151 x 2102915215 x 1476931755 x 4205836493 x 489059781 x 32465
Negative:
-1 x -317540165-5 x -63508033-43 x -7384655-151 x -2102915-215 x -1476931-755 x -420583-6493 x -48905-9781 x -32465
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 317,540,165, 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 | 317,540,165 | |
| -1 | -317,540,165 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 317,540,165.
Example:
1 x 317,540,165 = 317,540,165
and
-1 x -317,540,165 = 317,540,165
Notice both answers equal 317,540,165
With that explanation out of the way, let's continue. Next, we take the number 317,540,165 and divide it by 2:
317,540,165 ÷ 2 = 158,770,082.5
If the quotient is a whole number, then 2 and 158,770,082.5 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 | 317,540,165 | |
| -1 | -317,540,165 |
Now, we try dividing 317,540,165 by 3:
317,540,165 ÷ 3 = 105,846,721.6667
If the quotient is a whole number, then 3 and 105,846,721.6667 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 | 317,540,165 | |
| -1 | -317,540,165 |
Let's try dividing by 4:
317,540,165 ÷ 4 = 79,385,041.25
If the quotient is a whole number, then 4 and 79,385,041.25 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 | 317,540,165 | |
| -1 | 317,540,165 |
If you did it right, you will end up with this table:
| 1 | 5 | 43 | 151 | 215 | 755 | 6,493 | 9,781 | 32,465 | 48,905 | 420,583 | 1,476,931 | 2,102,915 | 7,384,655 | 63,508,033 | 317,540,165 |
| -1 | -5 | -43 | -151 | -215 | -755 | -6,493 | -9,781 | -32,465 | -48,905 | -420,583 | -1,476,931 | -2,102,915 | -7,384,655 | -63,508,033 | -317,540,165 |
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