A:
Positive:
1 x 3072715155 x 6145430317 x 1807479519 x 1617218585 x 361495995 x 3234437323 x 9513051615 x 190261
Negative:
-1 x -307271515-5 x -61454303-17 x -18074795-19 x -16172185-85 x -3614959-95 x -3234437-323 x -951305-1615 x -190261
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 307,271,515, 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 | 307,271,515 | |
| -1 | -307,271,515 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 307,271,515.
Example:
1 x 307,271,515 = 307,271,515
and
-1 x -307,271,515 = 307,271,515
Notice both answers equal 307,271,515
With that explanation out of the way, let's continue. Next, we take the number 307,271,515 and divide it by 2:
307,271,515 ÷ 2 = 153,635,757.5
If the quotient is a whole number, then 2 and 153,635,757.5 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 | 307,271,515 | |
| -1 | -307,271,515 |
Now, we try dividing 307,271,515 by 3:
307,271,515 ÷ 3 = 102,423,838.3333
If the quotient is a whole number, then 3 and 102,423,838.3333 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 | 307,271,515 | |
| -1 | -307,271,515 |
Let's try dividing by 4:
307,271,515 ÷ 4 = 76,817,878.75
If the quotient is a whole number, then 4 and 76,817,878.75 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 | 307,271,515 | |
| -1 | 307,271,515 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 19 | 85 | 95 | 323 | 1,615 | 190,261 | 951,305 | 3,234,437 | 3,614,959 | 16,172,185 | 18,074,795 | 61,454,303 | 307,271,515 |
| -1 | -5 | -17 | -19 | -85 | -95 | -323 | -1,615 | -190,261 | -951,305 | -3,234,437 | -3,614,959 | -16,172,185 | -18,074,795 | -61,454,303 | -307,271,515 |
Here are some more numbers to try:
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