A:
Positive:
1 x 840379111 x 76398143 x 195437109 x 77099163 x 51557473 x 177671199 x 70091793 x 4687
Negative:
-1 x -8403791-11 x -763981-43 x -195437-109 x -77099-163 x -51557-473 x -17767-1199 x -7009-1793 x -4687
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 8,403,791, 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 | 8,403,791 | |
| -1 | -8,403,791 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,403,791.
Example:
1 x 8,403,791 = 8,403,791
and
-1 x -8,403,791 = 8,403,791
Notice both answers equal 8,403,791
With that explanation out of the way, let's continue. Next, we take the number 8,403,791 and divide it by 2:
8,403,791 ÷ 2 = 4,201,895.5
If the quotient is a whole number, then 2 and 4,201,895.5 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 | 8,403,791 | |
| -1 | -8,403,791 |
Now, we try dividing 8,403,791 by 3:
8,403,791 ÷ 3 = 2,801,263.6667
If the quotient is a whole number, then 3 and 2,801,263.6667 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 | 8,403,791 | |
| -1 | -8,403,791 |
Let's try dividing by 4:
8,403,791 ÷ 4 = 2,100,947.75
If the quotient is a whole number, then 4 and 2,100,947.75 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 | 8,403,791 | |
| -1 | 8,403,791 |
If you did it right, you will end up with this table:
| 1 | 11 | 43 | 109 | 163 | 473 | 1,199 | 1,793 | 4,687 | 7,009 | 17,767 | 51,557 | 77,099 | 195,437 | 763,981 | 8,403,791 |
| -1 | -11 | -43 | -109 | -163 | -473 | -1,199 | -1,793 | -4,687 | -7,009 | -17,767 | -51,557 | -77,099 | -195,437 | -763,981 | -8,403,791 |
Here are some more numbers to try:
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