A:
Positive:
1 x 13502047911 x 1227458919 x 7106341209 x 646031223 x 6054732453 x 550432897 x 466074237 x 31867
Negative:
-1 x -135020479-11 x -12274589-19 x -7106341-209 x -646031-223 x -605473-2453 x -55043-2897 x -46607-4237 x -31867
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 135,020,479, 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 | 135,020,479 | |
| -1 | -135,020,479 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 135,020,479.
Example:
1 x 135,020,479 = 135,020,479
and
-1 x -135,020,479 = 135,020,479
Notice both answers equal 135,020,479
With that explanation out of the way, let's continue. Next, we take the number 135,020,479 and divide it by 2:
135,020,479 ÷ 2 = 67,510,239.5
If the quotient is a whole number, then 2 and 67,510,239.5 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 | 135,020,479 | |
| -1 | -135,020,479 |
Now, we try dividing 135,020,479 by 3:
135,020,479 ÷ 3 = 45,006,826.3333
If the quotient is a whole number, then 3 and 45,006,826.3333 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 | 135,020,479 | |
| -1 | -135,020,479 |
Let's try dividing by 4:
135,020,479 ÷ 4 = 33,755,119.75
If the quotient is a whole number, then 4 and 33,755,119.75 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 | 135,020,479 | |
| -1 | 135,020,479 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 209 | 223 | 2,453 | 2,897 | 4,237 | 31,867 | 46,607 | 55,043 | 605,473 | 646,031 | 7,106,341 | 12,274,589 | 135,020,479 |
| -1 | -11 | -19 | -209 | -223 | -2,453 | -2,897 | -4,237 | -31,867 | -46,607 | -55,043 | -605,473 | -646,031 | -7,106,341 | -12,274,589 | -135,020,479 |
Here are some more numbers to try:
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