A:
Positive:
1 x 1354640217 x 1935200311 x 1231491177 x 1759273577 x 2347733049 x 444294039 x 335396347 x 21343
Negative:
-1 x -135464021-7 x -19352003-11 x -12314911-77 x -1759273-577 x -234773-3049 x -44429-4039 x -33539-6347 x -21343
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 135,464,021, 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 | 135,464,021 | |
| -1 | -135,464,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 135,464,021.
Example:
1 x 135,464,021 = 135,464,021
and
-1 x -135,464,021 = 135,464,021
Notice both answers equal 135,464,021
With that explanation out of the way, let's continue. Next, we take the number 135,464,021 and divide it by 2:
135,464,021 ÷ 2 = 67,732,010.5
If the quotient is a whole number, then 2 and 67,732,010.5 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 | 135,464,021 | |
| -1 | -135,464,021 |
Now, we try dividing 135,464,021 by 3:
135,464,021 ÷ 3 = 45,154,673.6667
If the quotient is a whole number, then 3 and 45,154,673.6667 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 | 135,464,021 | |
| -1 | -135,464,021 |
Let's try dividing by 4:
135,464,021 ÷ 4 = 33,866,005.25
If the quotient is a whole number, then 4 and 33,866,005.25 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 | 135,464,021 | |
| -1 | 135,464,021 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 577 | 3,049 | 4,039 | 6,347 | 21,343 | 33,539 | 44,429 | 234,773 | 1,759,273 | 12,314,911 | 19,352,003 | 135,464,021 |
| -1 | -7 | -11 | -77 | -577 | -3,049 | -4,039 | -6,347 | -21,343 | -33,539 | -44,429 | -234,773 | -1,759,273 | -12,314,911 | -19,352,003 | -135,464,021 |
Here are some more numbers to try:
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