A:
Positive:
1 x 2051330955 x 4102661929 x 7073555109 x 1881955145 x 1414711545 x 3763913161 x 6489512979 x 15805
Negative:
-1 x -205133095-5 x -41026619-29 x -7073555-109 x -1881955-145 x -1414711-545 x -376391-3161 x -64895-12979 x -15805
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 205,133,095, 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 | 205,133,095 | |
| -1 | -205,133,095 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,133,095.
Example:
1 x 205,133,095 = 205,133,095
and
-1 x -205,133,095 = 205,133,095
Notice both answers equal 205,133,095
With that explanation out of the way, let's continue. Next, we take the number 205,133,095 and divide it by 2:
205,133,095 ÷ 2 = 102,566,547.5
If the quotient is a whole number, then 2 and 102,566,547.5 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 | 205,133,095 | |
| -1 | -205,133,095 |
Now, we try dividing 205,133,095 by 3:
205,133,095 ÷ 3 = 68,377,698.3333
If the quotient is a whole number, then 3 and 68,377,698.3333 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 | 205,133,095 | |
| -1 | -205,133,095 |
Let's try dividing by 4:
205,133,095 ÷ 4 = 51,283,273.75
If the quotient is a whole number, then 4 and 51,283,273.75 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 | 205,133,095 | |
| -1 | 205,133,095 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 109 | 145 | 545 | 3,161 | 12,979 | 15,805 | 64,895 | 376,391 | 1,414,711 | 1,881,955 | 7,073,555 | 41,026,619 | 205,133,095 |
| -1 | -5 | -29 | -109 | -145 | -545 | -3,161 | -12,979 | -15,805 | -64,895 | -376,391 | -1,414,711 | -1,881,955 | -7,073,555 | -41,026,619 | -205,133,095 |
Here are some more numbers to try:
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