A:
Positive:
1 x 6804855 x 13609713 x 5234519 x 3581529 x 2346565 x 1046995 x 7163145 x 4693247 x 2755361 x 1885377 x 1805551 x 1235
Negative:
-1 x -680485-5 x -136097-13 x -52345-19 x -35815-29 x -23465-65 x -10469-95 x -7163-145 x -4693-247 x -2755-361 x -1885-377 x -1805-551 x -1235
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 680,485, 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 | 680,485 | |
| -1 | -680,485 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 680,485.
Example:
1 x 680,485 = 680,485
and
-1 x -680,485 = 680,485
Notice both answers equal 680,485
With that explanation out of the way, let's continue. Next, we take the number 680,485 and divide it by 2:
680,485 ÷ 2 = 340,242.5
If the quotient is a whole number, then 2 and 340,242.5 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 | 680,485 | |
| -1 | -680,485 |
Now, we try dividing 680,485 by 3:
680,485 ÷ 3 = 226,828.3333
If the quotient is a whole number, then 3 and 226,828.3333 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 | 680,485 | |
| -1 | -680,485 |
Let's try dividing by 4:
680,485 ÷ 4 = 170,121.25
If the quotient is a whole number, then 4 and 170,121.25 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 | 680,485 | |
| -1 | 680,485 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 19 | 29 | 65 | 95 | 145 | 247 | 361 | 377 | 551 | 1,235 | 1,805 | 1,885 | 2,755 | 4,693 | 7,163 | 10,469 | 23,465 | 35,815 | 52,345 | 136,097 | 680,485 |
| -1 | -5 | -13 | -19 | -29 | -65 | -95 | -145 | -247 | -361 | -377 | -551 | -1,235 | -1,805 | -1,885 | -2,755 | -4,693 | -7,163 | -10,469 | -23,465 | -35,815 | -52,345 | -136,097 | -680,485 |
Here are some more numbers to try:
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