A:
Positive:
1 x 551616055 x 1103232141 x 134540553 x 1040785205 x 269081265 x 2081572173 x 253855077 x 10865
Negative:
-1 x -55161605-5 x -11032321-41 x -1345405-53 x -1040785-205 x -269081-265 x -208157-2173 x -25385-5077 x -10865
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 55,161,605, 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 | 55,161,605 | |
| -1 | -55,161,605 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,161,605.
Example:
1 x 55,161,605 = 55,161,605
and
-1 x -55,161,605 = 55,161,605
Notice both answers equal 55,161,605
With that explanation out of the way, let's continue. Next, we take the number 55,161,605 and divide it by 2:
55,161,605 ÷ 2 = 27,580,802.5
If the quotient is a whole number, then 2 and 27,580,802.5 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 | 55,161,605 | |
| -1 | -55,161,605 |
Now, we try dividing 55,161,605 by 3:
55,161,605 ÷ 3 = 18,387,201.6667
If the quotient is a whole number, then 3 and 18,387,201.6667 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 | 55,161,605 | |
| -1 | -55,161,605 |
Let's try dividing by 4:
55,161,605 ÷ 4 = 13,790,401.25
If the quotient is a whole number, then 4 and 13,790,401.25 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 | 55,161,605 | |
| -1 | 55,161,605 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 53 | 205 | 265 | 2,173 | 5,077 | 10,865 | 25,385 | 208,157 | 269,081 | 1,040,785 | 1,345,405 | 11,032,321 | 55,161,605 |
| -1 | -5 | -41 | -53 | -205 | -265 | -2,173 | -5,077 | -10,865 | -25,385 | -208,157 | -269,081 | -1,040,785 | -1,345,405 | -11,032,321 | -55,161,605 |
Here are some more numbers to try:
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