A:
Positive:
1 x 136851055 x 27370217 x 195501531 x 44145535 x 391003155 x 88291217 x 630651085 x 12613
Negative:
-1 x -13685105-5 x -2737021-7 x -1955015-31 x -441455-35 x -391003-155 x -88291-217 x -63065-1085 x -12613
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 13,685,105, 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 | 13,685,105 | |
| -1 | -13,685,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,685,105.
Example:
1 x 13,685,105 = 13,685,105
and
-1 x -13,685,105 = 13,685,105
Notice both answers equal 13,685,105
With that explanation out of the way, let's continue. Next, we take the number 13,685,105 and divide it by 2:
13,685,105 ÷ 2 = 6,842,552.5
If the quotient is a whole number, then 2 and 6,842,552.5 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 | 13,685,105 | |
| -1 | -13,685,105 |
Now, we try dividing 13,685,105 by 3:
13,685,105 ÷ 3 = 4,561,701.6667
If the quotient is a whole number, then 3 and 4,561,701.6667 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 | 13,685,105 | |
| -1 | -13,685,105 |
Let's try dividing by 4:
13,685,105 ÷ 4 = 3,421,276.25
If the quotient is a whole number, then 4 and 3,421,276.25 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 | 13,685,105 | |
| -1 | 13,685,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 31 | 35 | 155 | 217 | 1,085 | 12,613 | 63,065 | 88,291 | 391,003 | 441,455 | 1,955,015 | 2,737,021 | 13,685,105 |
| -1 | -5 | -7 | -31 | -35 | -155 | -217 | -1,085 | -12,613 | -63,065 | -88,291 | -391,003 | -441,455 | -1,955,015 | -2,737,021 | -13,685,105 |
Here are some more numbers to try:
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