A:
Positive:
1 x 38674155 x 77348317 x 22749585 x 45499173 x 22355263 x 14705865 x 44711315 x 2941
Negative:
-1 x -3867415-5 x -773483-17 x -227495-85 x -45499-173 x -22355-263 x -14705-865 x -4471-1315 x -2941
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 3,867,415, 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 | 3,867,415 | |
| -1 | -3,867,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,867,415.
Example:
1 x 3,867,415 = 3,867,415
and
-1 x -3,867,415 = 3,867,415
Notice both answers equal 3,867,415
With that explanation out of the way, let's continue. Next, we take the number 3,867,415 and divide it by 2:
3,867,415 ÷ 2 = 1,933,707.5
If the quotient is a whole number, then 2 and 1,933,707.5 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 | 3,867,415 | |
| -1 | -3,867,415 |
Now, we try dividing 3,867,415 by 3:
3,867,415 ÷ 3 = 1,289,138.3333
If the quotient is a whole number, then 3 and 1,289,138.3333 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 | 3,867,415 | |
| -1 | -3,867,415 |
Let's try dividing by 4:
3,867,415 ÷ 4 = 966,853.75
If the quotient is a whole number, then 4 and 966,853.75 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 | 3,867,415 | |
| -1 | 3,867,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 17 | 85 | 173 | 263 | 865 | 1,315 | 2,941 | 4,471 | 14,705 | 22,355 | 45,499 | 227,495 | 773,483 | 3,867,415 |
| -1 | -5 | -17 | -85 | -173 | -263 | -865 | -1,315 | -2,941 | -4,471 | -14,705 | -22,355 | -45,499 | -227,495 | -773,483 | -3,867,415 |
Here are some more numbers to try:
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