A:
Positive:
1 x 106386855 x 212773717 x 62580547 x 22635585 x 125161235 x 45271799 x 133152663 x 3995
Negative:
-1 x -10638685-5 x -2127737-17 x -625805-47 x -226355-85 x -125161-235 x -45271-799 x -13315-2663 x -3995
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 10,638,685, 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 | 10,638,685 | |
| -1 | -10,638,685 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 10,638,685.
Example:
1 x 10,638,685 = 10,638,685
and
-1 x -10,638,685 = 10,638,685
Notice both answers equal 10,638,685
With that explanation out of the way, let's continue. Next, we take the number 10,638,685 and divide it by 2:
10,638,685 ÷ 2 = 5,319,342.5
If the quotient is a whole number, then 2 and 5,319,342.5 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 | 10,638,685 | |
| -1 | -10,638,685 |
Now, we try dividing 10,638,685 by 3:
10,638,685 ÷ 3 = 3,546,228.3333
If the quotient is a whole number, then 3 and 3,546,228.3333 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 | 10,638,685 | |
| -1 | -10,638,685 |
Let's try dividing by 4:
10,638,685 ÷ 4 = 2,659,671.25
If the quotient is a whole number, then 4 and 2,659,671.25 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 | 10,638,685 | |
| -1 | 10,638,685 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 47 | 85 | 235 | 799 | 2,663 | 3,995 | 13,315 | 45,271 | 125,161 | 226,355 | 625,805 | 2,127,737 | 10,638,685 |
| -1 | -5 | -17 | -47 | -85 | -235 | -799 | -2,663 | -3,995 | -13,315 | -45,271 | -125,161 | -226,355 | -625,805 | -2,127,737 | -10,638,685 |
Here are some more numbers to try:
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