A:
Positive:
1 x 2477371555 x 4954743183 x 2984785241 x 1027955415 x 5969571205 x 2055912477 x 10001512385 x 20003
Negative:
-1 x -247737155-5 x -49547431-83 x -2984785-241 x -1027955-415 x -596957-1205 x -205591-2477 x -100015-12385 x -20003
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 247,737,155, 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 | 247,737,155 | |
| -1 | -247,737,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 247,737,155.
Example:
1 x 247,737,155 = 247,737,155
and
-1 x -247,737,155 = 247,737,155
Notice both answers equal 247,737,155
With that explanation out of the way, let's continue. Next, we take the number 247,737,155 and divide it by 2:
247,737,155 ÷ 2 = 123,868,577.5
If the quotient is a whole number, then 2 and 123,868,577.5 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 | 247,737,155 | |
| -1 | -247,737,155 |
Now, we try dividing 247,737,155 by 3:
247,737,155 ÷ 3 = 82,579,051.6667
If the quotient is a whole number, then 3 and 82,579,051.6667 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 | 247,737,155 | |
| -1 | -247,737,155 |
Let's try dividing by 4:
247,737,155 ÷ 4 = 61,934,288.75
If the quotient is a whole number, then 4 and 61,934,288.75 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 | 247,737,155 | |
| -1 | 247,737,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 83 | 241 | 415 | 1,205 | 2,477 | 12,385 | 20,003 | 100,015 | 205,591 | 596,957 | 1,027,955 | 2,984,785 | 49,547,431 | 247,737,155 |
| -1 | -5 | -83 | -241 | -415 | -1,205 | -2,477 | -12,385 | -20,003 | -100,015 | -205,591 | -596,957 | -1,027,955 | -2,984,785 | -49,547,431 | -247,737,155 |
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