A:
Positive:
1 x 13813155 x 27626313 x 10625565 x 2125179 x 17485269 x 5135395 x 34971027 x 1345
Negative:
-1 x -1381315-5 x -276263-13 x -106255-65 x -21251-79 x -17485-269 x -5135-395 x -3497-1027 x -1345
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 1,381,315, 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 | 1,381,315 | |
| -1 | -1,381,315 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 1,381,315.
Example:
1 x 1,381,315 = 1,381,315
and
-1 x -1,381,315 = 1,381,315
Notice both answers equal 1,381,315
With that explanation out of the way, let's continue. Next, we take the number 1,381,315 and divide it by 2:
1,381,315 ÷ 2 = 690,657.5
If the quotient is a whole number, then 2 and 690,657.5 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 | 1,381,315 | |
| -1 | -1,381,315 |
Now, we try dividing 1,381,315 by 3:
1,381,315 ÷ 3 = 460,438.3333
If the quotient is a whole number, then 3 and 460,438.3333 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 | 1,381,315 | |
| -1 | -1,381,315 |
Let's try dividing by 4:
1,381,315 ÷ 4 = 345,328.75
If the quotient is a whole number, then 4 and 345,328.75 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 | 1,381,315 | |
| -1 | 1,381,315 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 79 | 269 | 395 | 1,027 | 1,345 | 3,497 | 5,135 | 17,485 | 21,251 | 106,255 | 276,263 | 1,381,315 |
| -1 | -5 | -13 | -65 | -79 | -269 | -395 | -1,027 | -1,345 | -3,497 | -5,135 | -17,485 | -21,251 | -106,255 | -276,263 | -1,381,315 |
Here are some more numbers to try:
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