A:
Positive:
1 x 13788055 x 27576129 x 4754537 x 37265145 x 9509185 x 7453257 x 53651073 x 1285
Negative:
-1 x -1378805-5 x -275761-29 x -47545-37 x -37265-145 x -9509-185 x -7453-257 x -5365-1073 x -1285
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 1,378,805, 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 | 1,378,805 | |
| -1 | -1,378,805 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,378,805.
Example:
1 x 1,378,805 = 1,378,805
and
-1 x -1,378,805 = 1,378,805
Notice both answers equal 1,378,805
With that explanation out of the way, let's continue. Next, we take the number 1,378,805 and divide it by 2:
1,378,805 ÷ 2 = 689,402.5
If the quotient is a whole number, then 2 and 689,402.5 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 | 1,378,805 | |
| -1 | -1,378,805 |
Now, we try dividing 1,378,805 by 3:
1,378,805 ÷ 3 = 459,601.6667
If the quotient is a whole number, then 3 and 459,601.6667 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 | 1,378,805 | |
| -1 | -1,378,805 |
Let's try dividing by 4:
1,378,805 ÷ 4 = 344,701.25
If the quotient is a whole number, then 4 and 344,701.25 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 | 1,378,805 | |
| -1 | 1,378,805 |
If you did it right, you will end up with this table:
| 1 | 5 | 29 | 37 | 145 | 185 | 257 | 1,073 | 1,285 | 5,365 | 7,453 | 9,509 | 37,265 | 47,545 | 275,761 | 1,378,805 |
| -1 | -5 | -29 | -37 | -145 | -185 | -257 | -1,073 | -1,285 | -5,365 | -7,453 | -9,509 | -37,265 | -47,545 | -275,761 | -1,378,805 |
Here are some more numbers to try:
Try the factor calculator