A:
Positive:
1 x 20415665319 x 10745087101 x 2021353191 x 1068883557 x 3665291919 x 1063873629 x 5625710583 x 19291
Negative:
-1 x -204156653-19 x -10745087-101 x -2021353-191 x -1068883-557 x -366529-1919 x -106387-3629 x -56257-10583 x -19291
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 204,156,653, 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 | 204,156,653 | |
| -1 | -204,156,653 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 204,156,653.
Example:
1 x 204,156,653 = 204,156,653
and
-1 x -204,156,653 = 204,156,653
Notice both answers equal 204,156,653
With that explanation out of the way, let's continue. Next, we take the number 204,156,653 and divide it by 2:
204,156,653 ÷ 2 = 102,078,326.5
If the quotient is a whole number, then 2 and 102,078,326.5 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 | 204,156,653 | |
| -1 | -204,156,653 |
Now, we try dividing 204,156,653 by 3:
204,156,653 ÷ 3 = 68,052,217.6667
If the quotient is a whole number, then 3 and 68,052,217.6667 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 | 204,156,653 | |
| -1 | -204,156,653 |
Let's try dividing by 4:
204,156,653 ÷ 4 = 51,039,163.25
If the quotient is a whole number, then 4 and 51,039,163.25 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 | 204,156,653 | |
| -1 | 204,156,653 |
If you did it right, you will end up with this table:
| 1 | 19 | 101 | 191 | 557 | 1,919 | 3,629 | 10,583 | 19,291 | 56,257 | 106,387 | 366,529 | 1,068,883 | 2,021,353 | 10,745,087 | 204,156,653 |
| -1 | -19 | -101 | -191 | -557 | -1,919 | -3,629 | -10,583 | -19,291 | -56,257 | -106,387 | -366,529 | -1,068,883 | -2,021,353 | -10,745,087 | -204,156,653 |
Here are some more numbers to try:
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