A:
Positive:
1 x 1683812355 x 3367624711 x 1530738555 x 3061477673 x 2501953365 x 500394549 x 370157403 x 22745
Negative:
-1 x -168381235-5 x -33676247-11 x -15307385-55 x -3061477-673 x -250195-3365 x -50039-4549 x -37015-7403 x -22745
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 168,381,235, 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 | 168,381,235 | |
| -1 | -168,381,235 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 168,381,235.
Example:
1 x 168,381,235 = 168,381,235
and
-1 x -168,381,235 = 168,381,235
Notice both answers equal 168,381,235
With that explanation out of the way, let's continue. Next, we take the number 168,381,235 and divide it by 2:
168,381,235 ÷ 2 = 84,190,617.5
If the quotient is a whole number, then 2 and 84,190,617.5 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 | 168,381,235 | |
| -1 | -168,381,235 |
Now, we try dividing 168,381,235 by 3:
168,381,235 ÷ 3 = 56,127,078.3333
If the quotient is a whole number, then 3 and 56,127,078.3333 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 | 168,381,235 | |
| -1 | -168,381,235 |
Let's try dividing by 4:
168,381,235 ÷ 4 = 42,095,308.75
If the quotient is a whole number, then 4 and 42,095,308.75 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 | 168,381,235 | |
| -1 | 168,381,235 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 673 | 3,365 | 4,549 | 7,403 | 22,745 | 37,015 | 50,039 | 250,195 | 3,061,477 | 15,307,385 | 33,676,247 | 168,381,235 |
| -1 | -5 | -11 | -55 | -673 | -3,365 | -4,549 | -7,403 | -22,745 | -37,015 | -50,039 | -250,195 | -3,061,477 | -15,307,385 | -33,676,247 | -168,381,235 |
Here are some more numbers to try:
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