A:
Positive:
1 x 131355555 x 262711119 x 69134537 x 35501595 x 138269101 x 130055185 x 71003505 x 26011703 x 186851369 x 95951919 x 68453515 x 3737
Negative:
-1 x -13135555-5 x -2627111-19 x -691345-37 x -355015-95 x -138269-101 x -130055-185 x -71003-505 x -26011-703 x -18685-1369 x -9595-1919 x -6845-3515 x -3737
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 13,135,555, 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 | 13,135,555 | |
| -1 | -13,135,555 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,135,555.
Example:
1 x 13,135,555 = 13,135,555
and
-1 x -13,135,555 = 13,135,555
Notice both answers equal 13,135,555
With that explanation out of the way, let's continue. Next, we take the number 13,135,555 and divide it by 2:
13,135,555 ÷ 2 = 6,567,777.5
If the quotient is a whole number, then 2 and 6,567,777.5 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 | 13,135,555 | |
| -1 | -13,135,555 |
Now, we try dividing 13,135,555 by 3:
13,135,555 ÷ 3 = 4,378,518.3333
If the quotient is a whole number, then 3 and 4,378,518.3333 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 | 13,135,555 | |
| -1 | -13,135,555 |
Let's try dividing by 4:
13,135,555 ÷ 4 = 3,283,888.75
If the quotient is a whole number, then 4 and 3,283,888.75 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 | 13,135,555 | |
| -1 | 13,135,555 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 37 | 95 | 101 | 185 | 505 | 703 | 1,369 | 1,919 | 3,515 | 3,737 | 6,845 | 9,595 | 18,685 | 26,011 | 71,003 | 130,055 | 138,269 | 355,015 | 691,345 | 2,627,111 | 13,135,555 |
| -1 | -5 | -19 | -37 | -95 | -101 | -185 | -505 | -703 | -1,369 | -1,919 | -3,515 | -3,737 | -6,845 | -9,595 | -18,685 | -26,011 | -71,003 | -130,055 | -138,269 | -355,015 | -691,345 | -2,627,111 | -13,135,555 |
Here are some more numbers to try:
Try the factor calculator