A:
Positive:
1 x 28052755 x 56105511 x 25502525 x 11221155 x 51005101 x 27775275 x 10201505 x 55551111 x 2525
Negative:
-1 x -2805275-5 x -561055-11 x -255025-25 x -112211-55 x -51005-101 x -27775-275 x -10201-505 x -5555-1111 x -2525
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 2,805,275, 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 | 2,805,275 | |
| -1 | -2,805,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 2,805,275.
Example:
1 x 2,805,275 = 2,805,275
and
-1 x -2,805,275 = 2,805,275
Notice both answers equal 2,805,275
With that explanation out of the way, let's continue. Next, we take the number 2,805,275 and divide it by 2:
2,805,275 ÷ 2 = 1,402,637.5
If the quotient is a whole number, then 2 and 1,402,637.5 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 | 2,805,275 | |
| -1 | -2,805,275 |
Now, we try dividing 2,805,275 by 3:
2,805,275 ÷ 3 = 935,091.6667
If the quotient is a whole number, then 3 and 935,091.6667 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 | 2,805,275 | |
| -1 | -2,805,275 |
Let's try dividing by 4:
2,805,275 ÷ 4 = 701,318.75
If the quotient is a whole number, then 4 and 701,318.75 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 | 2,805,275 | |
| -1 | 2,805,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 55 | 101 | 275 | 505 | 1,111 | 2,525 | 5,555 | 10,201 | 27,775 | 51,005 | 112,211 | 255,025 | 561,055 | 2,805,275 |
| -1 | -5 | -11 | -25 | -55 | -101 | -275 | -505 | -1,111 | -2,525 | -5,555 | -10,201 | -27,775 | -51,005 | -112,211 | -255,025 | -561,055 | -2,805,275 |
Here are some more numbers to try:
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