A:
Positive:
1 x 136056555 x 27211317 x 194366535 x 388733241 x 564551205 x 112911613 x 84351687 x 8065
Negative:
-1 x -13605655-5 x -2721131-7 x -1943665-35 x -388733-241 x -56455-1205 x -11291-1613 x -8435-1687 x -8065
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 13,605,655, 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 | 13,605,655 | |
| -1 | -13,605,655 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,605,655.
Example:
1 x 13,605,655 = 13,605,655
and
-1 x -13,605,655 = 13,605,655
Notice both answers equal 13,605,655
With that explanation out of the way, let's continue. Next, we take the number 13,605,655 and divide it by 2:
13,605,655 ÷ 2 = 6,802,827.5
If the quotient is a whole number, then 2 and 6,802,827.5 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 | 13,605,655 | |
| -1 | -13,605,655 |
Now, we try dividing 13,605,655 by 3:
13,605,655 ÷ 3 = 4,535,218.3333
If the quotient is a whole number, then 3 and 4,535,218.3333 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 | 13,605,655 | |
| -1 | -13,605,655 |
Let's try dividing by 4:
13,605,655 ÷ 4 = 3,401,413.75
If the quotient is a whole number, then 4 and 3,401,413.75 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 | 13,605,655 | |
| -1 | 13,605,655 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 241 | 1,205 | 1,613 | 1,687 | 8,065 | 8,435 | 11,291 | 56,455 | 388,733 | 1,943,665 | 2,721,131 | 13,605,655 |
| -1 | -5 | -7 | -35 | -241 | -1,205 | -1,613 | -1,687 | -8,065 | -8,435 | -11,291 | -56,455 | -388,733 | -1,943,665 | -2,721,131 | -13,605,655 |
Here are some more numbers to try:
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