A:
Positive:
1 x 643660555 x 1287321113 x 495123543 x 149688565 x 990247215 x 299377559 x 1151452795 x 23029
Negative:
-1 x -64366055-5 x -12873211-13 x -4951235-43 x -1496885-65 x -990247-215 x -299377-559 x -115145-2795 x -23029
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 64,366,055, 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 | 64,366,055 | |
| -1 | -64,366,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 64,366,055.
Example:
1 x 64,366,055 = 64,366,055
and
-1 x -64,366,055 = 64,366,055
Notice both answers equal 64,366,055
With that explanation out of the way, let's continue. Next, we take the number 64,366,055 and divide it by 2:
64,366,055 ÷ 2 = 32,183,027.5
If the quotient is a whole number, then 2 and 32,183,027.5 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 | 64,366,055 | |
| -1 | -64,366,055 |
Now, we try dividing 64,366,055 by 3:
64,366,055 ÷ 3 = 21,455,351.6667
If the quotient is a whole number, then 3 and 21,455,351.6667 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 | 64,366,055 | |
| -1 | -64,366,055 |
Let's try dividing by 4:
64,366,055 ÷ 4 = 16,091,513.75
If the quotient is a whole number, then 4 and 16,091,513.75 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 | 64,366,055 | |
| -1 | 64,366,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 43 | 65 | 215 | 559 | 2,795 | 23,029 | 115,145 | 299,377 | 990,247 | 1,496,885 | 4,951,235 | 12,873,211 | 64,366,055 |
| -1 | -5 | -13 | -43 | -65 | -215 | -559 | -2,795 | -23,029 | -115,145 | -299,377 | -990,247 | -1,496,885 | -4,951,235 | -12,873,211 | -64,366,055 |
Here are some more numbers to try:
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