A:
Positive:
1 x 5536385477 x 7909122111 x 5033077777 x 7190111647 x 8557014529 x 1222437117 x 7779111113 x 49819
Negative:
-1 x -553638547-7 x -79091221-11 x -50330777-77 x -7190111-647 x -855701-4529 x -122243-7117 x -77791-11113 x -49819
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 553,638,547, 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 | 553,638,547 | |
| -1 | -553,638,547 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 553,638,547.
Example:
1 x 553,638,547 = 553,638,547
and
-1 x -553,638,547 = 553,638,547
Notice both answers equal 553,638,547
With that explanation out of the way, let's continue. Next, we take the number 553,638,547 and divide it by 2:
553,638,547 ÷ 2 = 276,819,273.5
If the quotient is a whole number, then 2 and 276,819,273.5 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 | 553,638,547 | |
| -1 | -553,638,547 |
Now, we try dividing 553,638,547 by 3:
553,638,547 ÷ 3 = 184,546,182.3333
If the quotient is a whole number, then 3 and 184,546,182.3333 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 | 553,638,547 | |
| -1 | -553,638,547 |
Let's try dividing by 4:
553,638,547 ÷ 4 = 138,409,636.75
If the quotient is a whole number, then 4 and 138,409,636.75 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 | 553,638,547 | |
| -1 | 553,638,547 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 647 | 4,529 | 7,117 | 11,113 | 49,819 | 77,791 | 122,243 | 855,701 | 7,190,111 | 50,330,777 | 79,091,221 | 553,638,547 |
| -1 | -7 | -11 | -77 | -647 | -4,529 | -7,117 | -11,113 | -49,819 | -77,791 | -122,243 | -855,701 | -7,190,111 | -50,330,777 | -79,091,221 | -553,638,547 |
Here are some more numbers to try:
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