A:
Positive:
1 x 16330312341 x 398300353 x 3081191223 x 732301337 x 4845792173 x 751519143 x 1786111819 x 13817
Negative:
-1 x -163303123-41 x -3983003-53 x -3081191-223 x -732301-337 x -484579-2173 x -75151-9143 x -17861-11819 x -13817
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 163,303,123, 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 | 163,303,123 | |
| -1 | -163,303,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,303,123.
Example:
1 x 163,303,123 = 163,303,123
and
-1 x -163,303,123 = 163,303,123
Notice both answers equal 163,303,123
With that explanation out of the way, let's continue. Next, we take the number 163,303,123 and divide it by 2:
163,303,123 ÷ 2 = 81,651,561.5
If the quotient is a whole number, then 2 and 81,651,561.5 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 | 163,303,123 | |
| -1 | -163,303,123 |
Now, we try dividing 163,303,123 by 3:
163,303,123 ÷ 3 = 54,434,374.3333
If the quotient is a whole number, then 3 and 54,434,374.3333 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 | 163,303,123 | |
| -1 | -163,303,123 |
Let's try dividing by 4:
163,303,123 ÷ 4 = 40,825,780.75
If the quotient is a whole number, then 4 and 40,825,780.75 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 | 163,303,123 | |
| -1 | 163,303,123 |
If you did it right, you will end up with this table:
| 1 | 41 | 53 | 223 | 337 | 2,173 | 9,143 | 11,819 | 13,817 | 17,861 | 75,151 | 484,579 | 732,301 | 3,081,191 | 3,983,003 | 163,303,123 |
| -1 | -41 | -53 | -223 | -337 | -2,173 | -9,143 | -11,819 | -13,817 | -17,861 | -75,151 | -484,579 | -732,301 | -3,081,191 | -3,983,003 | -163,303,123 |
Here are some more numbers to try:
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