A:
Positive:
1 x 6919997 x 9885711 x 6290919 x 3642143 x 1609377 x 8987121 x 5719133 x 5203209 x 3311301 x 2299473 x 1463817 x 847
Negative:
-1 x -691999-7 x -98857-11 x -62909-19 x -36421-43 x -16093-77 x -8987-121 x -5719-133 x -5203-209 x -3311-301 x -2299-473 x -1463-817 x -847
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 691,999, 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 | 691,999 | |
| -1 | -691,999 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 691,999.
Example:
1 x 691,999 = 691,999
and
-1 x -691,999 = 691,999
Notice both answers equal 691,999
With that explanation out of the way, let's continue. Next, we take the number 691,999 and divide it by 2:
691,999 ÷ 2 = 345,999.5
If the quotient is a whole number, then 2 and 345,999.5 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 | 691,999 | |
| -1 | -691,999 |
Now, we try dividing 691,999 by 3:
691,999 ÷ 3 = 230,666.3333
If the quotient is a whole number, then 3 and 230,666.3333 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 | 691,999 | |
| -1 | -691,999 |
Let's try dividing by 4:
691,999 ÷ 4 = 172,999.75
If the quotient is a whole number, then 4 and 172,999.75 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 | 691,999 | |
| -1 | 691,999 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 19 | 43 | 77 | 121 | 133 | 209 | 301 | 473 | 817 | 847 | 1,463 | 2,299 | 3,311 | 5,203 | 5,719 | 8,987 | 16,093 | 36,421 | 62,909 | 98,857 | 691,999 |
| -1 | -7 | -11 | -19 | -43 | -77 | -121 | -133 | -209 | -301 | -473 | -817 | -847 | -1,463 | -2,299 | -3,311 | -5,203 | -5,719 | -8,987 | -16,093 | -36,421 | -62,909 | -98,857 | -691,999 |
Here are some more numbers to try:
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