A:
Positive:
1 x 135150617 x 193072319 x 711319133 x 101617307 x 44023331 x 408312149 x 62892317 x 5833
Negative:
-1 x -13515061-7 x -1930723-19 x -711319-133 x -101617-307 x -44023-331 x -40831-2149 x -6289-2317 x -5833
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 13,515,061, 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 | 13,515,061 | |
| -1 | -13,515,061 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,515,061.
Example:
1 x 13,515,061 = 13,515,061
and
-1 x -13,515,061 = 13,515,061
Notice both answers equal 13,515,061
With that explanation out of the way, let's continue. Next, we take the number 13,515,061 and divide it by 2:
13,515,061 ÷ 2 = 6,757,530.5
If the quotient is a whole number, then 2 and 6,757,530.5 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 | 13,515,061 | |
| -1 | -13,515,061 |
Now, we try dividing 13,515,061 by 3:
13,515,061 ÷ 3 = 4,505,020.3333
If the quotient is a whole number, then 3 and 4,505,020.3333 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 | 13,515,061 | |
| -1 | -13,515,061 |
Let's try dividing by 4:
13,515,061 ÷ 4 = 3,378,765.25
If the quotient is a whole number, then 4 and 3,378,765.25 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 | 13,515,061 | |
| -1 | 13,515,061 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 307 | 331 | 2,149 | 2,317 | 5,833 | 6,289 | 40,831 | 44,023 | 101,617 | 711,319 | 1,930,723 | 13,515,061 |
| -1 | -7 | -19 | -133 | -307 | -331 | -2,149 | -2,317 | -5,833 | -6,289 | -40,831 | -44,023 | -101,617 | -711,319 | -1,930,723 | -13,515,061 |
Here are some more numbers to try:
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