A:
Positive:
1 x 6891855 x 1378377 x 9845529 x 2376535 x 1969149 x 1406597 x 7105145 x 4753203 x 3395245 x 2813485 x 1421679 x 1015
Negative:
-1 x -689185-5 x -137837-7 x -98455-29 x -23765-35 x -19691-49 x -14065-97 x -7105-145 x -4753-203 x -3395-245 x -2813-485 x -1421-679 x -1015
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 689,185, 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 | 689,185 | |
| -1 | -689,185 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 689,185.
Example:
1 x 689,185 = 689,185
and
-1 x -689,185 = 689,185
Notice both answers equal 689,185
With that explanation out of the way, let's continue. Next, we take the number 689,185 and divide it by 2:
689,185 ÷ 2 = 344,592.5
If the quotient is a whole number, then 2 and 344,592.5 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 | 689,185 | |
| -1 | -689,185 |
Now, we try dividing 689,185 by 3:
689,185 ÷ 3 = 229,728.3333
If the quotient is a whole number, then 3 and 229,728.3333 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 | 689,185 | |
| -1 | -689,185 |
Let's try dividing by 4:
689,185 ÷ 4 = 172,296.25
If the quotient is a whole number, then 4 and 172,296.25 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 | 689,185 | |
| -1 | 689,185 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 29 | 35 | 49 | 97 | 145 | 203 | 245 | 485 | 679 | 1,015 | 1,421 | 2,813 | 3,395 | 4,753 | 7,105 | 14,065 | 19,691 | 23,765 | 98,455 | 137,837 | 689,185 |
| -1 | -5 | -7 | -29 | -35 | -49 | -97 | -145 | -203 | -245 | -485 | -679 | -1,015 | -1,421 | -2,813 | -3,395 | -4,753 | -7,105 | -14,065 | -19,691 | -23,765 | -98,455 | -137,837 | -689,185 |
Here are some more numbers to try:
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