A:
Positive:
1 x 81674455 x 163348911 x 74249513 x 62826555 x 14849965 x 125653143 x 57115715 x 11423
Negative:
-1 x -8167445-5 x -1633489-11 x -742495-13 x -628265-55 x -148499-65 x -125653-143 x -57115-715 x -11423
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 8,167,445, 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 | 8,167,445 | |
| -1 | -8,167,445 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,167,445.
Example:
1 x 8,167,445 = 8,167,445
and
-1 x -8,167,445 = 8,167,445
Notice both answers equal 8,167,445
With that explanation out of the way, let's continue. Next, we take the number 8,167,445 and divide it by 2:
8,167,445 ÷ 2 = 4,083,722.5
If the quotient is a whole number, then 2 and 4,083,722.5 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 | 8,167,445 | |
| -1 | -8,167,445 |
Now, we try dividing 8,167,445 by 3:
8,167,445 ÷ 3 = 2,722,481.6667
If the quotient is a whole number, then 3 and 2,722,481.6667 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 | 8,167,445 | |
| -1 | -8,167,445 |
Let's try dividing by 4:
8,167,445 ÷ 4 = 2,041,861.25
If the quotient is a whole number, then 4 and 2,041,861.25 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 | 8,167,445 | |
| -1 | 8,167,445 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 13 | 55 | 65 | 143 | 715 | 11,423 | 57,115 | 125,653 | 148,499 | 628,265 | 742,495 | 1,633,489 | 8,167,445 |
| -1 | -5 | -11 | -13 | -55 | -65 | -143 | -715 | -11,423 | -57,115 | -125,653 | -148,499 | -628,265 | -742,495 | -1,633,489 | -8,167,445 |
Here are some more numbers to try:
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