A:
Positive:
1 x 8402755 x 16805519 x 4422525 x 3361129 x 2897561 x 1377595 x 8845145 x 5795305 x 2755475 x 1769551 x 1525725 x 1159
Negative:
-1 x -840275-5 x -168055-19 x -44225-25 x -33611-29 x -28975-61 x -13775-95 x -8845-145 x -5795-305 x -2755-475 x -1769-551 x -1525-725 x -1159
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 840,275, 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 | 840,275 | |
| -1 | -840,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 840,275.
Example:
1 x 840,275 = 840,275
and
-1 x -840,275 = 840,275
Notice both answers equal 840,275
With that explanation out of the way, let's continue. Next, we take the number 840,275 and divide it by 2:
840,275 ÷ 2 = 420,137.5
If the quotient is a whole number, then 2 and 420,137.5 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 | 840,275 | |
| -1 | -840,275 |
Now, we try dividing 840,275 by 3:
840,275 ÷ 3 = 280,091.6667
If the quotient is a whole number, then 3 and 280,091.6667 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 | 840,275 | |
| -1 | -840,275 |
Let's try dividing by 4:
840,275 ÷ 4 = 210,068.75
If the quotient is a whole number, then 4 and 210,068.75 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 | 840,275 | |
| -1 | 840,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 29 | 61 | 95 | 145 | 305 | 475 | 551 | 725 | 1,159 | 1,525 | 1,769 | 2,755 | 5,795 | 8,845 | 13,775 | 28,975 | 33,611 | 44,225 | 168,055 | 840,275 |
| -1 | -5 | -19 | -25 | -29 | -61 | -95 | -145 | -305 | -475 | -551 | -725 | -1,159 | -1,525 | -1,769 | -2,755 | -5,795 | -8,845 | -13,775 | -28,975 | -33,611 | -44,225 | -168,055 | -840,275 |
Here are some more numbers to try:
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