A:
Positive:
1 x 1401353055 x 28027061109 x 1285645389 x 360245545 x 257129661 x 2120051945 x 720493305 x 42401
Negative:
-1 x -140135305-5 x -28027061-109 x -1285645-389 x -360245-545 x -257129-661 x -212005-1945 x -72049-3305 x -42401
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 140,135,305, 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 | 140,135,305 | |
| -1 | -140,135,305 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,135,305.
Example:
1 x 140,135,305 = 140,135,305
and
-1 x -140,135,305 = 140,135,305
Notice both answers equal 140,135,305
With that explanation out of the way, let's continue. Next, we take the number 140,135,305 and divide it by 2:
140,135,305 ÷ 2 = 70,067,652.5
If the quotient is a whole number, then 2 and 70,067,652.5 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 | 140,135,305 | |
| -1 | -140,135,305 |
Now, we try dividing 140,135,305 by 3:
140,135,305 ÷ 3 = 46,711,768.3333
If the quotient is a whole number, then 3 and 46,711,768.3333 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 | 140,135,305 | |
| -1 | -140,135,305 |
Let's try dividing by 4:
140,135,305 ÷ 4 = 35,033,826.25
If the quotient is a whole number, then 4 and 35,033,826.25 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 | 140,135,305 | |
| -1 | 140,135,305 |
If you did it right, you will end up with this table:
| 1 | 5 | 109 | 389 | 545 | 661 | 1,945 | 3,305 | 42,401 | 72,049 | 212,005 | 257,129 | 360,245 | 1,285,645 | 28,027,061 | 140,135,305 |
| -1 | -5 | -109 | -389 | -545 | -661 | -1,945 | -3,305 | -42,401 | -72,049 | -212,005 | -257,129 | -360,245 | -1,285,645 | -28,027,061 | -140,135,305 |
Here are some more numbers to try:
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