A:
Positive:
1 x 6724410555 x 13448821111 x 6113100513 x 5172623555 x 1222620165 x 10345247143 x 4702385715 x 940477
Negative:
-1 x -672441055-5 x -134488211-11 x -61131005-13 x -51726235-55 x -12226201-65 x -10345247-143 x -4702385-715 x -940477
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 672,441,055, 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 | 672,441,055 | |
| -1 | -672,441,055 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 672,441,055.
Example:
1 x 672,441,055 = 672,441,055
and
-1 x -672,441,055 = 672,441,055
Notice both answers equal 672,441,055
With that explanation out of the way, let's continue. Next, we take the number 672,441,055 and divide it by 2:
672,441,055 ÷ 2 = 336,220,527.5
If the quotient is a whole number, then 2 and 336,220,527.5 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 | 672,441,055 | |
| -1 | -672,441,055 |
Now, we try dividing 672,441,055 by 3:
672,441,055 ÷ 3 = 224,147,018.3333
If the quotient is a whole number, then 3 and 224,147,018.3333 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 | 672,441,055 | |
| -1 | -672,441,055 |
Let's try dividing by 4:
672,441,055 ÷ 4 = 168,110,263.75
If the quotient is a whole number, then 4 and 168,110,263.75 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 | 672,441,055 | |
| -1 | 672,441,055 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 715 | 940,477 | 4,702,385 | 10,345,247 | 12,226,201 | 51,726,235 | 61,131,005 | 134,488,211 | 672,441,055 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -715 | -940,477 | -4,702,385 | -10,345,247 | -12,226,201 | -51,726,235 | -61,131,005 | -134,488,211 | -672,441,055 |
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