A:
Positive:
1 x 85215055 x 170430117 x 50126529 x 29384585 x 100253145 x 58769493 x 172852465 x 3457
Negative:
-1 x -8521505-5 x -1704301-17 x -501265-29 x -293845-85 x -100253-145 x -58769-493 x -17285-2465 x -3457
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 8,521,505, 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 | 8,521,505 | |
| -1 | -8,521,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,521,505.
Example:
1 x 8,521,505 = 8,521,505
and
-1 x -8,521,505 = 8,521,505
Notice both answers equal 8,521,505
With that explanation out of the way, let's continue. Next, we take the number 8,521,505 and divide it by 2:
8,521,505 ÷ 2 = 4,260,752.5
If the quotient is a whole number, then 2 and 4,260,752.5 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 | 8,521,505 | |
| -1 | -8,521,505 |
Now, we try dividing 8,521,505 by 3:
8,521,505 ÷ 3 = 2,840,501.6667
If the quotient is a whole number, then 3 and 2,840,501.6667 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 | 8,521,505 | |
| -1 | -8,521,505 |
Let's try dividing by 4:
8,521,505 ÷ 4 = 2,130,376.25
If the quotient is a whole number, then 4 and 2,130,376.25 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 | 8,521,505 | |
| -1 | 8,521,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 29 | 85 | 145 | 493 | 2,465 | 3,457 | 17,285 | 58,769 | 100,253 | 293,845 | 501,265 | 1,704,301 | 8,521,505 |
| -1 | -5 | -17 | -29 | -85 | -145 | -493 | -2,465 | -3,457 | -17,285 | -58,769 | -100,253 | -293,845 | -501,265 | -1,704,301 | -8,521,505 |
Here are some more numbers to try:
Try the factor calculator