A:
Positive:
1 x 127448655 x 25489737 x 182069535 x 364139449 x 28385811 x 157152245 x 56773143 x 4055
Negative:
-1 x -12744865-5 x -2548973-7 x -1820695-35 x -364139-449 x -28385-811 x -15715-2245 x -5677-3143 x -4055
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 12,744,865, 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 | 12,744,865 | |
| -1 | -12,744,865 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 12,744,865.
Example:
1 x 12,744,865 = 12,744,865
and
-1 x -12,744,865 = 12,744,865
Notice both answers equal 12,744,865
With that explanation out of the way, let's continue. Next, we take the number 12,744,865 and divide it by 2:
12,744,865 ÷ 2 = 6,372,432.5
If the quotient is a whole number, then 2 and 6,372,432.5 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 | 12,744,865 | |
| -1 | -12,744,865 |
Now, we try dividing 12,744,865 by 3:
12,744,865 ÷ 3 = 4,248,288.3333
If the quotient is a whole number, then 3 and 4,248,288.3333 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 | 12,744,865 | |
| -1 | -12,744,865 |
Let's try dividing by 4:
12,744,865 ÷ 4 = 3,186,216.25
If the quotient is a whole number, then 4 and 3,186,216.25 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 | 12,744,865 | |
| -1 | 12,744,865 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 449 | 811 | 2,245 | 3,143 | 4,055 | 5,677 | 15,715 | 28,385 | 364,139 | 1,820,695 | 2,548,973 | 12,744,865 |
| -1 | -5 | -7 | -35 | -449 | -811 | -2,245 | -3,143 | -4,055 | -5,677 | -15,715 | -28,385 | -364,139 | -1,820,695 | -2,548,973 | -12,744,865 |
Here are some more numbers to try:
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