A:
Positive:
1 x 85059177 x 121513153 x 160489101 x 84217227 x 37471371 x 22927707 x 120311589 x 5353
Negative:
-1 x -8505917-7 x -1215131-53 x -160489-101 x -84217-227 x -37471-371 x -22927-707 x -12031-1589 x -5353
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 8,505,917, 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 | 8,505,917 | |
| -1 | -8,505,917 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,505,917.
Example:
1 x 8,505,917 = 8,505,917
and
-1 x -8,505,917 = 8,505,917
Notice both answers equal 8,505,917
With that explanation out of the way, let's continue. Next, we take the number 8,505,917 and divide it by 2:
8,505,917 ÷ 2 = 4,252,958.5
If the quotient is a whole number, then 2 and 4,252,958.5 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 | 8,505,917 | |
| -1 | -8,505,917 |
Now, we try dividing 8,505,917 by 3:
8,505,917 ÷ 3 = 2,835,305.6667
If the quotient is a whole number, then 3 and 2,835,305.6667 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 | 8,505,917 | |
| -1 | -8,505,917 |
Let's try dividing by 4:
8,505,917 ÷ 4 = 2,126,479.25
If the quotient is a whole number, then 4 and 2,126,479.25 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 | 8,505,917 | |
| -1 | 8,505,917 |
If you did it right, you will end up with this table:
| 1 | 7 | 53 | 101 | 227 | 371 | 707 | 1,589 | 5,353 | 12,031 | 22,927 | 37,471 | 84,217 | 160,489 | 1,215,131 | 8,505,917 |
| -1 | -7 | -53 | -101 | -227 | -371 | -707 | -1,589 | -5,353 | -12,031 | -22,927 | -37,471 | -84,217 | -160,489 | -1,215,131 | -8,505,917 |
Here are some more numbers to try:
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