A:
Positive:
1 x 1325511729 x 45707359 x 22466361 x 217297127 x 1043711711 x 77471769 x 74933599 x 3683
Negative:
-1 x -13255117-29 x -457073-59 x -224663-61 x -217297-127 x -104371-1711 x -7747-1769 x -7493-3599 x -3683
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 13,255,117, 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 | 13,255,117 | |
| -1 | -13,255,117 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 13,255,117.
Example:
1 x 13,255,117 = 13,255,117
and
-1 x -13,255,117 = 13,255,117
Notice both answers equal 13,255,117
With that explanation out of the way, let's continue. Next, we take the number 13,255,117 and divide it by 2:
13,255,117 ÷ 2 = 6,627,558.5
If the quotient is a whole number, then 2 and 6,627,558.5 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 | 13,255,117 | |
| -1 | -13,255,117 |
Now, we try dividing 13,255,117 by 3:
13,255,117 ÷ 3 = 4,418,372.3333
If the quotient is a whole number, then 3 and 4,418,372.3333 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 | 13,255,117 | |
| -1 | -13,255,117 |
Let's try dividing by 4:
13,255,117 ÷ 4 = 3,313,779.25
If the quotient is a whole number, then 4 and 3,313,779.25 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 | 13,255,117 | |
| -1 | 13,255,117 |
If you did it right, you will end up with this table:
| 1 | 29 | 59 | 61 | 127 | 1,711 | 1,769 | 3,599 | 3,683 | 7,493 | 7,747 | 104,371 | 217,297 | 224,663 | 457,073 | 13,255,117 |
| -1 | -29 | -59 | -61 | -127 | -1,711 | -1,769 | -3,599 | -3,683 | -7,493 | -7,747 | -104,371 | -217,297 | -224,663 | -457,073 | -13,255,117 |
Here are some more numbers to try:
Try the factor calculator