A:
Positive:
1 x 87240237 x 124628911 x 79309377 x 113299137 x 63679827 x 10549959 x 90971507 x 5789
Negative:
-1 x -8724023-7 x -1246289-11 x -793093-77 x -113299-137 x -63679-827 x -10549-959 x -9097-1507 x -5789
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 8,724,023, 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 | 8,724,023 | |
| -1 | -8,724,023 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 8,724,023.
Example:
1 x 8,724,023 = 8,724,023
and
-1 x -8,724,023 = 8,724,023
Notice both answers equal 8,724,023
With that explanation out of the way, let's continue. Next, we take the number 8,724,023 and divide it by 2:
8,724,023 ÷ 2 = 4,362,011.5
If the quotient is a whole number, then 2 and 4,362,011.5 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 | 8,724,023 | |
| -1 | -8,724,023 |
Now, we try dividing 8,724,023 by 3:
8,724,023 ÷ 3 = 2,908,007.6667
If the quotient is a whole number, then 3 and 2,908,007.6667 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 | 8,724,023 | |
| -1 | -8,724,023 |
Let's try dividing by 4:
8,724,023 ÷ 4 = 2,181,005.75
If the quotient is a whole number, then 4 and 2,181,005.75 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 | 8,724,023 | |
| -1 | 8,724,023 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 137 | 827 | 959 | 1,507 | 5,789 | 9,097 | 10,549 | 63,679 | 113,299 | 793,093 | 1,246,289 | 8,724,023 |
| -1 | -7 | -11 | -77 | -137 | -827 | -959 | -1,507 | -5,789 | -9,097 | -10,549 | -63,679 | -113,299 | -793,093 | -1,246,289 | -8,724,023 |
Here are some more numbers to try:
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