A:
Positive:
1 x 83721617 x 119602323 x 364007149 x 56189161 x 52001349 x 239891043 x 80272443 x 3427
Negative:
-1 x -8372161-7 x -1196023-23 x -364007-149 x -56189-161 x -52001-349 x -23989-1043 x -8027-2443 x -3427
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 8,372,161, 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 | 8,372,161 | |
| -1 | -8,372,161 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,372,161.
Example:
1 x 8,372,161 = 8,372,161
and
-1 x -8,372,161 = 8,372,161
Notice both answers equal 8,372,161
With that explanation out of the way, let's continue. Next, we take the number 8,372,161 and divide it by 2:
8,372,161 ÷ 2 = 4,186,080.5
If the quotient is a whole number, then 2 and 4,186,080.5 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 | 8,372,161 | |
| -1 | -8,372,161 |
Now, we try dividing 8,372,161 by 3:
8,372,161 ÷ 3 = 2,790,720.3333
If the quotient is a whole number, then 3 and 2,790,720.3333 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 | 8,372,161 | |
| -1 | -8,372,161 |
Let's try dividing by 4:
8,372,161 ÷ 4 = 2,093,040.25
If the quotient is a whole number, then 4 and 2,093,040.25 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 | 8,372,161 | |
| -1 | 8,372,161 |
If you did it right, you will end up with this table:
| 1 | 7 | 23 | 149 | 161 | 349 | 1,043 | 2,443 | 3,427 | 8,027 | 23,989 | 52,001 | 56,189 | 364,007 | 1,196,023 | 8,372,161 |
| -1 | -7 | -23 | -149 | -161 | -349 | -1,043 | -2,443 | -3,427 | -8,027 | -23,989 | -52,001 | -56,189 | -364,007 | -1,196,023 | -8,372,161 |
Here are some more numbers to try:
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