A:
Positive:
1 x 127052755 x 254105511 x 115502525 x 50821147 x 27032555 x 231005235 x 54065275 x 46201517 x 24575983 x 129251175 x 108132585 x 4915
Negative:
-1 x -12705275-5 x -2541055-11 x -1155025-25 x -508211-47 x -270325-55 x -231005-235 x -54065-275 x -46201-517 x -24575-983 x -12925-1175 x -10813-2585 x -4915
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 12,705,275, 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 | 12,705,275 | |
| -1 | -12,705,275 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,705,275.
Example:
1 x 12,705,275 = 12,705,275
and
-1 x -12,705,275 = 12,705,275
Notice both answers equal 12,705,275
With that explanation out of the way, let's continue. Next, we take the number 12,705,275 and divide it by 2:
12,705,275 ÷ 2 = 6,352,637.5
If the quotient is a whole number, then 2 and 6,352,637.5 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 | 12,705,275 | |
| -1 | -12,705,275 |
Now, we try dividing 12,705,275 by 3:
12,705,275 ÷ 3 = 4,235,091.6667
If the quotient is a whole number, then 3 and 4,235,091.6667 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 | 12,705,275 | |
| -1 | -12,705,275 |
Let's try dividing by 4:
12,705,275 ÷ 4 = 3,176,318.75
If the quotient is a whole number, then 4 and 3,176,318.75 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 | 12,705,275 | |
| -1 | 12,705,275 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 25 | 47 | 55 | 235 | 275 | 517 | 983 | 1,175 | 2,585 | 4,915 | 10,813 | 12,925 | 24,575 | 46,201 | 54,065 | 231,005 | 270,325 | 508,211 | 1,155,025 | 2,541,055 | 12,705,275 |
| -1 | -5 | -11 | -25 | -47 | -55 | -235 | -275 | -517 | -983 | -1,175 | -2,585 | -4,915 | -10,813 | -12,925 | -24,575 | -46,201 | -54,065 | -231,005 | -270,325 | -508,211 | -1,155,025 | -2,541,055 | -12,705,275 |
Here are some more numbers to try:
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