A:
Positive:
1 x 131156417 x 187366311 x 119233159 x 22229977 x 170333413 x 31757649 x 202092887 x 4543
Negative:
-1 x -13115641-7 x -1873663-11 x -1192331-59 x -222299-77 x -170333-413 x -31757-649 x -20209-2887 x -4543
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 13,115,641, 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 | 13,115,641 | |
| -1 | -13,115,641 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,115,641.
Example:
1 x 13,115,641 = 13,115,641
and
-1 x -13,115,641 = 13,115,641
Notice both answers equal 13,115,641
With that explanation out of the way, let's continue. Next, we take the number 13,115,641 and divide it by 2:
13,115,641 ÷ 2 = 6,557,820.5
If the quotient is a whole number, then 2 and 6,557,820.5 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 | 13,115,641 | |
| -1 | -13,115,641 |
Now, we try dividing 13,115,641 by 3:
13,115,641 ÷ 3 = 4,371,880.3333
If the quotient is a whole number, then 3 and 4,371,880.3333 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 | 13,115,641 | |
| -1 | -13,115,641 |
Let's try dividing by 4:
13,115,641 ÷ 4 = 3,278,910.25
If the quotient is a whole number, then 4 and 3,278,910.25 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 | 13,115,641 | |
| -1 | 13,115,641 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 59 | 77 | 413 | 649 | 2,887 | 4,543 | 20,209 | 31,757 | 170,333 | 222,299 | 1,192,331 | 1,873,663 | 13,115,641 |
| -1 | -7 | -11 | -59 | -77 | -413 | -649 | -2,887 | -4,543 | -20,209 | -31,757 | -170,333 | -222,299 | -1,192,331 | -1,873,663 | -13,115,641 |
Here are some more numbers to try:
Try the factor calculator