A:
Positive:
1 x 551308037 x 787582913 x 424083131 x 177841391 x 605833217 x 254059403 x 1368012821 x 19543
Negative:
-1 x -55130803-7 x -7875829-13 x -4240831-31 x -1778413-91 x -605833-217 x -254059-403 x -136801-2821 x -19543
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 55,130,803, 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 | 55,130,803 | |
| -1 | -55,130,803 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,130,803.
Example:
1 x 55,130,803 = 55,130,803
and
-1 x -55,130,803 = 55,130,803
Notice both answers equal 55,130,803
With that explanation out of the way, let's continue. Next, we take the number 55,130,803 and divide it by 2:
55,130,803 ÷ 2 = 27,565,401.5
If the quotient is a whole number, then 2 and 27,565,401.5 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 | 55,130,803 | |
| -1 | -55,130,803 |
Now, we try dividing 55,130,803 by 3:
55,130,803 ÷ 3 = 18,376,934.3333
If the quotient is a whole number, then 3 and 18,376,934.3333 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 | 55,130,803 | |
| -1 | -55,130,803 |
Let's try dividing by 4:
55,130,803 ÷ 4 = 13,782,700.75
If the quotient is a whole number, then 4 and 13,782,700.75 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 | 55,130,803 | |
| -1 | 55,130,803 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 31 | 91 | 217 | 403 | 2,821 | 19,543 | 136,801 | 254,059 | 605,833 | 1,778,413 | 4,240,831 | 7,875,829 | 55,130,803 |
| -1 | -7 | -13 | -31 | -91 | -217 | -403 | -2,821 | -19,543 | -136,801 | -254,059 | -605,833 | -1,778,413 | -4,240,831 | -7,875,829 | -55,130,803 |
Here are some more numbers to try:
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