A:
Positive:
1 x 2051670677 x 2930958117 x 1206865149 x 418708371 x 2889677119 x 1724093497 x 412811833 x 2462991207 x 1699813469 x 591433479 x 589738449 x 24283
Negative:
-1 x -205167067-7 x -29309581-17 x -12068651-49 x -4187083-71 x -2889677-119 x -1724093-497 x -412811-833 x -246299-1207 x -169981-3469 x -59143-3479 x -58973-8449 x -24283
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 205,167,067, 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 | 205,167,067 | |
| -1 | -205,167,067 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,167,067.
Example:
1 x 205,167,067 = 205,167,067
and
-1 x -205,167,067 = 205,167,067
Notice both answers equal 205,167,067
With that explanation out of the way, let's continue. Next, we take the number 205,167,067 and divide it by 2:
205,167,067 ÷ 2 = 102,583,533.5
If the quotient is a whole number, then 2 and 102,583,533.5 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 | 205,167,067 | |
| -1 | -205,167,067 |
Now, we try dividing 205,167,067 by 3:
205,167,067 ÷ 3 = 68,389,022.3333
If the quotient is a whole number, then 3 and 68,389,022.3333 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 | 205,167,067 | |
| -1 | -205,167,067 |
Let's try dividing by 4:
205,167,067 ÷ 4 = 51,291,766.75
If the quotient is a whole number, then 4 and 51,291,766.75 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 | 205,167,067 | |
| -1 | 205,167,067 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 71 | 119 | 497 | 833 | 1,207 | 3,469 | 3,479 | 8,449 | 24,283 | 58,973 | 59,143 | 169,981 | 246,299 | 412,811 | 1,724,093 | 2,889,677 | 4,187,083 | 12,068,651 | 29,309,581 | 205,167,067 |
| -1 | -7 | -17 | -49 | -71 | -119 | -497 | -833 | -1,207 | -3,469 | -3,479 | -8,449 | -24,283 | -58,973 | -59,143 | -169,981 | -246,299 | -412,811 | -1,724,093 | -2,889,677 | -4,187,083 | -12,068,651 | -29,309,581 | -205,167,067 |
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