A:
Positive:
1 x 5610454555 x 11220909129 x 1934639559 x 9509245145 x 3869279295 x 19018491711 x 3279058555 x 65581
Negative:
-1 x -561045455-5 x -112209091-29 x -19346395-59 x -9509245-145 x -3869279-295 x -1901849-1711 x -327905-8555 x -65581
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 561,045,455, 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 | 561,045,455 | |
| -1 | -561,045,455 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 561,045,455.
Example:
1 x 561,045,455 = 561,045,455
and
-1 x -561,045,455 = 561,045,455
Notice both answers equal 561,045,455
With that explanation out of the way, let's continue. Next, we take the number 561,045,455 and divide it by 2:
561,045,455 ÷ 2 = 280,522,727.5
If the quotient is a whole number, then 2 and 280,522,727.5 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 | 561,045,455 | |
| -1 | -561,045,455 |
Now, we try dividing 561,045,455 by 3:
561,045,455 ÷ 3 = 187,015,151.6667
If the quotient is a whole number, then 3 and 187,015,151.6667 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 | 561,045,455 | |
| -1 | -561,045,455 |
Let's try dividing by 4:
561,045,455 ÷ 4 = 140,261,363.75
If the quotient is a whole number, then 4 and 140,261,363.75 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 | 561,045,455 | |
| -1 | 561,045,455 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 59 | 145 | 295 | 1,711 | 8,555 | 65,581 | 327,905 | 1,901,849 | 3,869,279 | 9,509,245 | 19,346,395 | 112,209,091 | 561,045,455 |
| -1 | -5 | -29 | -59 | -145 | -295 | -1,711 | -8,555 | -65,581 | -327,905 | -1,901,849 | -3,869,279 | -9,509,245 | -19,346,395 | -112,209,091 | -561,045,455 |
Here are some more numbers to try:
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