A:
Positive:
1 x 3915832713 x 301217917 x 2303431167 x 234481221 x 1771871061 x 369072171 x 180372839 x 13793
Negative:
-1 x -39158327-13 x -3012179-17 x -2303431-167 x -234481-221 x -177187-1061 x -36907-2171 x -18037-2839 x -13793
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 39,158,327, 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 | 39,158,327 | |
| -1 | -39,158,327 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 39,158,327.
Example:
1 x 39,158,327 = 39,158,327
and
-1 x -39,158,327 = 39,158,327
Notice both answers equal 39,158,327
With that explanation out of the way, let's continue. Next, we take the number 39,158,327 and divide it by 2:
39,158,327 ÷ 2 = 19,579,163.5
If the quotient is a whole number, then 2 and 19,579,163.5 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 | 39,158,327 | |
| -1 | -39,158,327 |
Now, we try dividing 39,158,327 by 3:
39,158,327 ÷ 3 = 13,052,775.6667
If the quotient is a whole number, then 3 and 13,052,775.6667 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 | 39,158,327 | |
| -1 | -39,158,327 |
Let's try dividing by 4:
39,158,327 ÷ 4 = 9,789,581.75
If the quotient is a whole number, then 4 and 9,789,581.75 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 | 39,158,327 | |
| -1 | 39,158,327 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 167 | 221 | 1,061 | 2,171 | 2,839 | 13,793 | 18,037 | 36,907 | 177,187 | 234,481 | 2,303,431 | 3,012,179 | 39,158,327 |
| -1 | -13 | -17 | -167 | -221 | -1,061 | -2,171 | -2,839 | -13,793 | -18,037 | -36,907 | -177,187 | -234,481 | -2,303,431 | -3,012,179 | -39,158,327 |
Here are some more numbers to try:
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