A:
Positive:
1 x 84393955 x 168787917 x 49643543 x 19626585 x 99287215 x 39253731 x 115452309 x 3655
Negative:
-1 x -8439395-5 x -1687879-17 x -496435-43 x -196265-85 x -99287-215 x -39253-731 x -11545-2309 x -3655
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 8,439,395, 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 | 8,439,395 | |
| -1 | -8,439,395 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,439,395.
Example:
1 x 8,439,395 = 8,439,395
and
-1 x -8,439,395 = 8,439,395
Notice both answers equal 8,439,395
With that explanation out of the way, let's continue. Next, we take the number 8,439,395 and divide it by 2:
8,439,395 ÷ 2 = 4,219,697.5
If the quotient is a whole number, then 2 and 4,219,697.5 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 | 8,439,395 | |
| -1 | -8,439,395 |
Now, we try dividing 8,439,395 by 3:
8,439,395 ÷ 3 = 2,813,131.6667
If the quotient is a whole number, then 3 and 2,813,131.6667 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 | 8,439,395 | |
| -1 | -8,439,395 |
Let's try dividing by 4:
8,439,395 ÷ 4 = 2,109,848.75
If the quotient is a whole number, then 4 and 2,109,848.75 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 | 8,439,395 | |
| -1 | 8,439,395 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 43 | 85 | 215 | 731 | 2,309 | 3,655 | 11,545 | 39,253 | 99,287 | 196,265 | 496,435 | 1,687,879 | 8,439,395 |
| -1 | -5 | -17 | -43 | -85 | -215 | -731 | -2,309 | -3,655 | -11,545 | -39,253 | -99,287 | -196,265 | -496,435 | -1,687,879 | -8,439,395 |
Here are some more numbers to try:
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