A:
Positive:
1 x 2057600355 x 4115200713 x 1582769565 x 3165539169 x 1217515845 x 2435032197 x 9365510985 x 18731
Negative:
-1 x -205760035-5 x -41152007-13 x -15827695-65 x -3165539-169 x -1217515-845 x -243503-2197 x -93655-10985 x -18731
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 205,760,035, 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 | 205,760,035 | |
| -1 | -205,760,035 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 205,760,035.
Example:
1 x 205,760,035 = 205,760,035
and
-1 x -205,760,035 = 205,760,035
Notice both answers equal 205,760,035
With that explanation out of the way, let's continue. Next, we take the number 205,760,035 and divide it by 2:
205,760,035 ÷ 2 = 102,880,017.5
If the quotient is a whole number, then 2 and 102,880,017.5 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 | 205,760,035 | |
| -1 | -205,760,035 |
Now, we try dividing 205,760,035 by 3:
205,760,035 ÷ 3 = 68,586,678.3333
If the quotient is a whole number, then 3 and 68,586,678.3333 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 | 205,760,035 | |
| -1 | -205,760,035 |
Let's try dividing by 4:
205,760,035 ÷ 4 = 51,440,008.75
If the quotient is a whole number, then 4 and 51,440,008.75 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 | 205,760,035 | |
| -1 | 205,760,035 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 169 | 845 | 2,197 | 10,985 | 18,731 | 93,655 | 243,503 | 1,217,515 | 3,165,539 | 15,827,695 | 41,152,007 | 205,760,035 |
| -1 | -5 | -13 | -65 | -169 | -845 | -2,197 | -10,985 | -18,731 | -93,655 | -243,503 | -1,217,515 | -3,165,539 | -15,827,695 | -41,152,007 | -205,760,035 |
Here are some more numbers to try:
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