A:
Positive:
1 x 363943119 x 19154931 x 11740137 x 98363167 x 21793589 x 6179703 x 51771147 x 3173
Negative:
-1 x -3639431-19 x -191549-31 x -117401-37 x -98363-167 x -21793-589 x -6179-703 x -5177-1147 x -3173
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 3,639,431, 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 | 3,639,431 | |
| -1 | -3,639,431 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 3,639,431.
Example:
1 x 3,639,431 = 3,639,431
and
-1 x -3,639,431 = 3,639,431
Notice both answers equal 3,639,431
With that explanation out of the way, let's continue. Next, we take the number 3,639,431 and divide it by 2:
3,639,431 ÷ 2 = 1,819,715.5
If the quotient is a whole number, then 2 and 1,819,715.5 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 | 3,639,431 | |
| -1 | -3,639,431 |
Now, we try dividing 3,639,431 by 3:
3,639,431 ÷ 3 = 1,213,143.6667
If the quotient is a whole number, then 3 and 1,213,143.6667 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 | 3,639,431 | |
| -1 | -3,639,431 |
Let's try dividing by 4:
3,639,431 ÷ 4 = 909,857.75
If the quotient is a whole number, then 4 and 909,857.75 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 | 3,639,431 | |
| -1 | 3,639,431 |
If you did it right, you will end up with this table:
| 1 | 19 | 31 | 37 | 167 | 589 | 703 | 1,147 | 3,173 | 5,177 | 6,179 | 21,793 | 98,363 | 117,401 | 191,549 | 3,639,431 |
| -1 | -19 | -31 | -37 | -167 | -589 | -703 | -1,147 | -3,173 | -5,177 | -6,179 | -21,793 | -98,363 | -117,401 | -191,549 | -3,639,431 |
Here are some more numbers to try:
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