A:
Positive:
1 x 5050242477 x 7214632113 x 3884801959 x 855973391 x 5549717413 x 1222819767 x 6584415369 x 94063
Negative:
-1 x -505024247-7 x -72146321-13 x -38848019-59 x -8559733-91 x -5549717-413 x -1222819-767 x -658441-5369 x -94063
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 505,024,247, 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 | 505,024,247 | |
| -1 | -505,024,247 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 505,024,247.
Example:
1 x 505,024,247 = 505,024,247
and
-1 x -505,024,247 = 505,024,247
Notice both answers equal 505,024,247
With that explanation out of the way, let's continue. Next, we take the number 505,024,247 and divide it by 2:
505,024,247 ÷ 2 = 252,512,123.5
If the quotient is a whole number, then 2 and 252,512,123.5 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 | 505,024,247 | |
| -1 | -505,024,247 |
Now, we try dividing 505,024,247 by 3:
505,024,247 ÷ 3 = 168,341,415.6667
If the quotient is a whole number, then 3 and 168,341,415.6667 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 | 505,024,247 | |
| -1 | -505,024,247 |
Let's try dividing by 4:
505,024,247 ÷ 4 = 126,256,061.75
If the quotient is a whole number, then 4 and 126,256,061.75 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 | 505,024,247 | |
| -1 | 505,024,247 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 59 | 91 | 413 | 767 | 5,369 | 94,063 | 658,441 | 1,222,819 | 5,549,717 | 8,559,733 | 38,848,019 | 72,146,321 | 505,024,247 |
| -1 | -7 | -13 | -59 | -91 | -413 | -767 | -5,369 | -94,063 | -658,441 | -1,222,819 | -5,549,717 | -8,559,733 | -38,848,019 | -72,146,321 | -505,024,247 |
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