A:
Positive:
1 x 555500055 x 111100017 x 793571535 x 158714347 x 1181915235 x 236383329 x 1688451645 x 33769
Negative:
-1 x -55550005-5 x -11110001-7 x -7935715-35 x -1587143-47 x -1181915-235 x -236383-329 x -168845-1645 x -33769
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 55,550,005, 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 | 55,550,005 | |
| -1 | -55,550,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,550,005.
Example:
1 x 55,550,005 = 55,550,005
and
-1 x -55,550,005 = 55,550,005
Notice both answers equal 55,550,005
With that explanation out of the way, let's continue. Next, we take the number 55,550,005 and divide it by 2:
55,550,005 ÷ 2 = 27,775,002.5
If the quotient is a whole number, then 2 and 27,775,002.5 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 | 55,550,005 | |
| -1 | -55,550,005 |
Now, we try dividing 55,550,005 by 3:
55,550,005 ÷ 3 = 18,516,668.3333
If the quotient is a whole number, then 3 and 18,516,668.3333 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 | 55,550,005 | |
| -1 | -55,550,005 |
Let's try dividing by 4:
55,550,005 ÷ 4 = 13,887,501.25
If the quotient is a whole number, then 4 and 13,887,501.25 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 | 55,550,005 | |
| -1 | 55,550,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 47 | 235 | 329 | 1,645 | 33,769 | 168,845 | 236,383 | 1,181,915 | 1,587,143 | 7,935,715 | 11,110,001 | 55,550,005 |
| -1 | -5 | -7 | -35 | -47 | -235 | -329 | -1,645 | -33,769 | -168,845 | -236,383 | -1,181,915 | -1,587,143 | -7,935,715 | -11,110,001 | -55,550,005 |
Here are some more numbers to try:
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