A:
Positive:
1 x 1693213697 x 2418876719 x 8911651133 x 1273093503 x 3366232531 x 668993521 x 480899557 x 17717
Negative:
-1 x -169321369-7 x -24188767-19 x -8911651-133 x -1273093-503 x -336623-2531 x -66899-3521 x -48089-9557 x -17717
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 169,321,369, 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 | 169,321,369 | |
| -1 | -169,321,369 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 169,321,369.
Example:
1 x 169,321,369 = 169,321,369
and
-1 x -169,321,369 = 169,321,369
Notice both answers equal 169,321,369
With that explanation out of the way, let's continue. Next, we take the number 169,321,369 and divide it by 2:
169,321,369 ÷ 2 = 84,660,684.5
If the quotient is a whole number, then 2 and 84,660,684.5 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 | 169,321,369 | |
| -1 | -169,321,369 |
Now, we try dividing 169,321,369 by 3:
169,321,369 ÷ 3 = 56,440,456.3333
If the quotient is a whole number, then 3 and 56,440,456.3333 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 | 169,321,369 | |
| -1 | -169,321,369 |
Let's try dividing by 4:
169,321,369 ÷ 4 = 42,330,342.25
If the quotient is a whole number, then 4 and 42,330,342.25 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 | 169,321,369 | |
| -1 | 169,321,369 |
If you did it right, you will end up with this table:
| 1 | 7 | 19 | 133 | 503 | 2,531 | 3,521 | 9,557 | 17,717 | 48,089 | 66,899 | 336,623 | 1,273,093 | 8,911,651 | 24,188,767 | 169,321,369 |
| -1 | -7 | -19 | -133 | -503 | -2,531 | -3,521 | -9,557 | -17,717 | -48,089 | -66,899 | -336,623 | -1,273,093 | -8,911,651 | -24,188,767 | -169,321,369 |
Here are some more numbers to try:
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