A:
Positive:
1 x 1634265055 x 3268530111 x 1485695519 x 860139555 x 297139195 x 1720279209 x 781945361 x 4527051045 x 1563891805 x 905413971 x 411558231 x 19855
Negative:
-1 x -163426505-5 x -32685301-11 x -14856955-19 x -8601395-55 x -2971391-95 x -1720279-209 x -781945-361 x -452705-1045 x -156389-1805 x -90541-3971 x -41155-8231 x -19855
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 163,426,505, 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 | 163,426,505 | |
| -1 | -163,426,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,426,505.
Example:
1 x 163,426,505 = 163,426,505
and
-1 x -163,426,505 = 163,426,505
Notice both answers equal 163,426,505
With that explanation out of the way, let's continue. Next, we take the number 163,426,505 and divide it by 2:
163,426,505 ÷ 2 = 81,713,252.5
If the quotient is a whole number, then 2 and 81,713,252.5 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 | 163,426,505 | |
| -1 | -163,426,505 |
Now, we try dividing 163,426,505 by 3:
163,426,505 ÷ 3 = 54,475,501.6667
If the quotient is a whole number, then 3 and 54,475,501.6667 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 | 163,426,505 | |
| -1 | -163,426,505 |
Let's try dividing by 4:
163,426,505 ÷ 4 = 40,856,626.25
If the quotient is a whole number, then 4 and 40,856,626.25 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 | 163,426,505 | |
| -1 | 163,426,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 361 | 1,045 | 1,805 | 3,971 | 8,231 | 19,855 | 41,155 | 90,541 | 156,389 | 452,705 | 781,945 | 1,720,279 | 2,971,391 | 8,601,395 | 14,856,955 | 32,685,301 | 163,426,505 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -361 | -1,045 | -1,805 | -3,971 | -8,231 | -19,855 | -41,155 | -90,541 | -156,389 | -452,705 | -781,945 | -1,720,279 | -2,971,391 | -8,601,395 | -14,856,955 | -32,685,301 | -163,426,505 |
Here are some more numbers to try:
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