A:
Positive:
1 x 5548778313 x 426829179 x 70237797 x 572039557 x 996191027 x 540291261 x 440037241 x 7663
Negative:
-1 x -55487783-13 x -4268291-79 x -702377-97 x -572039-557 x -99619-1027 x -54029-1261 x -44003-7241 x -7663
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 55,487,783, 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 | 55,487,783 | |
| -1 | -55,487,783 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 55,487,783.
Example:
1 x 55,487,783 = 55,487,783
and
-1 x -55,487,783 = 55,487,783
Notice both answers equal 55,487,783
With that explanation out of the way, let's continue. Next, we take the number 55,487,783 and divide it by 2:
55,487,783 ÷ 2 = 27,743,891.5
If the quotient is a whole number, then 2 and 27,743,891.5 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 | 55,487,783 | |
| -1 | -55,487,783 |
Now, we try dividing 55,487,783 by 3:
55,487,783 ÷ 3 = 18,495,927.6667
If the quotient is a whole number, then 3 and 18,495,927.6667 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 | 55,487,783 | |
| -1 | -55,487,783 |
Let's try dividing by 4:
55,487,783 ÷ 4 = 13,871,945.75
If the quotient is a whole number, then 4 and 13,871,945.75 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 | 55,487,783 | |
| -1 | 55,487,783 |
If you did it right, you will end up with this table:
| 1 | 13 | 79 | 97 | 557 | 1,027 | 1,261 | 7,241 | 7,663 | 44,003 | 54,029 | 99,619 | 572,039 | 702,377 | 4,268,291 | 55,487,783 |
| -1 | -13 | -79 | -97 | -557 | -1,027 | -1,261 | -7,241 | -7,663 | -44,003 | -54,029 | -99,619 | -572,039 | -702,377 | -4,268,291 | -55,487,783 |
Here are some more numbers to try:
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