A:
Positive:
1 x 1407551155 x 28151023101 x 1393615167 x 842845505 x 278723835 x 1685691669 x 843358345 x 16867
Negative:
-1 x -140755115-5 x -28151023-101 x -1393615-167 x -842845-505 x -278723-835 x -168569-1669 x -84335-8345 x -16867
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 140,755,115, 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 | 140,755,115 | |
| -1 | -140,755,115 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 140,755,115.
Example:
1 x 140,755,115 = 140,755,115
and
-1 x -140,755,115 = 140,755,115
Notice both answers equal 140,755,115
With that explanation out of the way, let's continue. Next, we take the number 140,755,115 and divide it by 2:
140,755,115 ÷ 2 = 70,377,557.5
If the quotient is a whole number, then 2 and 70,377,557.5 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 | 140,755,115 | |
| -1 | -140,755,115 |
Now, we try dividing 140,755,115 by 3:
140,755,115 ÷ 3 = 46,918,371.6667
If the quotient is a whole number, then 3 and 46,918,371.6667 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 | 140,755,115 | |
| -1 | -140,755,115 |
Let's try dividing by 4:
140,755,115 ÷ 4 = 35,188,778.75
If the quotient is a whole number, then 4 and 35,188,778.75 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 | 140,755,115 | |
| -1 | 140,755,115 |
If you did it right, you will end up with this table:
| 1 | 5 | 101 | 167 | 505 | 835 | 1,669 | 8,345 | 16,867 | 84,335 | 168,569 | 278,723 | 842,845 | 1,393,615 | 28,151,023 | 140,755,115 |
| -1 | -5 | -101 | -167 | -505 | -835 | -1,669 | -8,345 | -16,867 | -84,335 | -168,569 | -278,723 | -842,845 | -1,393,615 | -28,151,023 | -140,755,115 |
Here are some more numbers to try:
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