A:
Positive:
1 x 1634155 x 326837 x 2334523 x 710529 x 563535 x 466949 x 3335115 x 1421145 x 1127161 x 1015203 x 805245 x 667
Negative:
-1 x -163415-5 x -32683-7 x -23345-23 x -7105-29 x -5635-35 x -4669-49 x -3335-115 x -1421-145 x -1127-161 x -1015-203 x -805-245 x -667
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 163,415, 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 | 163,415 | |
| -1 | -163,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,415.
Example:
1 x 163,415 = 163,415
and
-1 x -163,415 = 163,415
Notice both answers equal 163,415
With that explanation out of the way, let's continue. Next, we take the number 163,415 and divide it by 2:
163,415 ÷ 2 = 81,707.5
If the quotient is a whole number, then 2 and 81,707.5 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 | 163,415 | |
| -1 | -163,415 |
Now, we try dividing 163,415 by 3:
163,415 ÷ 3 = 54,471.6667
If the quotient is a whole number, then 3 and 54,471.6667 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 | 163,415 | |
| -1 | -163,415 |
Let's try dividing by 4:
163,415 ÷ 4 = 40,853.75
If the quotient is a whole number, then 4 and 40,853.75 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 | 163,415 | |
| -1 | 163,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 23 | 29 | 35 | 49 | 115 | 145 | 161 | 203 | 245 | 667 | 805 | 1,015 | 1,127 | 1,421 | 3,335 | 4,669 | 5,635 | 7,105 | 23,345 | 32,683 | 163,415 |
| -1 | -5 | -7 | -23 | -29 | -35 | -49 | -115 | -145 | -161 | -203 | -245 | -667 | -805 | -1,015 | -1,127 | -1,421 | -3,335 | -4,669 | -5,635 | -7,105 | -23,345 | -32,683 | -163,415 |
Here are some more numbers to try:
Try the factor calculator