A:
Positive:
1 x 1024008711 x 93091713 x 787699101 x 101387143 x 71609709 x 144431111 x 92171313 x 7799
Negative:
-1 x -10240087-11 x -930917-13 x -787699-101 x -101387-143 x -71609-709 x -14443-1111 x -9217-1313 x -7799
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 10,240,087, 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 | 10,240,087 | |
| -1 | -10,240,087 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,240,087.
Example:
1 x 10,240,087 = 10,240,087
and
-1 x -10,240,087 = 10,240,087
Notice both answers equal 10,240,087
With that explanation out of the way, let's continue. Next, we take the number 10,240,087 and divide it by 2:
10,240,087 ÷ 2 = 5,120,043.5
If the quotient is a whole number, then 2 and 5,120,043.5 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 | 10,240,087 | |
| -1 | -10,240,087 |
Now, we try dividing 10,240,087 by 3:
10,240,087 ÷ 3 = 3,413,362.3333
If the quotient is a whole number, then 3 and 3,413,362.3333 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 | 10,240,087 | |
| -1 | -10,240,087 |
Let's try dividing by 4:
10,240,087 ÷ 4 = 2,560,021.75
If the quotient is a whole number, then 4 and 2,560,021.75 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 | 10,240,087 | |
| -1 | 10,240,087 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 101 | 143 | 709 | 1,111 | 1,313 | 7,799 | 9,217 | 14,443 | 71,609 | 101,387 | 787,699 | 930,917 | 10,240,087 |
| -1 | -11 | -13 | -101 | -143 | -709 | -1,111 | -1,313 | -7,799 | -9,217 | -14,443 | -71,609 | -101,387 | -787,699 | -930,917 | -10,240,087 |
Here are some more numbers to try:
Try the factor calculator