A:
Positive:
1 x 16341723123 x 710509761 x 2678971269 x 607499433 x 3774071403 x 1164776187 x 264139959 x 16409
Negative:
-1 x -163417231-23 x -7105097-61 x -2678971-269 x -607499-433 x -377407-1403 x -116477-6187 x -26413-9959 x -16409
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 163,417,231, 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 | 163,417,231 | |
| -1 | -163,417,231 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 163,417,231.
Example:
1 x 163,417,231 = 163,417,231
and
-1 x -163,417,231 = 163,417,231
Notice both answers equal 163,417,231
With that explanation out of the way, let's continue. Next, we take the number 163,417,231 and divide it by 2:
163,417,231 ÷ 2 = 81,708,615.5
If the quotient is a whole number, then 2 and 81,708,615.5 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 | 163,417,231 | |
| -1 | -163,417,231 |
Now, we try dividing 163,417,231 by 3:
163,417,231 ÷ 3 = 54,472,410.3333
If the quotient is a whole number, then 3 and 54,472,410.3333 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 | 163,417,231 | |
| -1 | -163,417,231 |
Let's try dividing by 4:
163,417,231 ÷ 4 = 40,854,307.75
If the quotient is a whole number, then 4 and 40,854,307.75 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 | 163,417,231 | |
| -1 | 163,417,231 |
If you did it right, you will end up with this table:
| 1 | 23 | 61 | 269 | 433 | 1,403 | 6,187 | 9,959 | 16,409 | 26,413 | 116,477 | 377,407 | 607,499 | 2,678,971 | 7,105,097 | 163,417,231 |
| -1 | -23 | -61 | -269 | -433 | -1,403 | -6,187 | -9,959 | -16,409 | -26,413 | -116,477 | -377,407 | -607,499 | -2,678,971 | -7,105,097 | -163,417,231 |
Here are some more numbers to try:
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