A:
Positive:
1 x 979923113 x 75378719 x 51574997 x 101023247 x 39673409 x 239591261 x 77711843 x 5317
Negative:
-1 x -9799231-13 x -753787-19 x -515749-97 x -101023-247 x -39673-409 x -23959-1261 x -7771-1843 x -5317
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 9,799,231, 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 | 9,799,231 | |
| -1 | -9,799,231 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 9,799,231.
Example:
1 x 9,799,231 = 9,799,231
and
-1 x -9,799,231 = 9,799,231
Notice both answers equal 9,799,231
With that explanation out of the way, let's continue. Next, we take the number 9,799,231 and divide it by 2:
9,799,231 ÷ 2 = 4,899,615.5
If the quotient is a whole number, then 2 and 4,899,615.5 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 | 9,799,231 | |
| -1 | -9,799,231 |
Now, we try dividing 9,799,231 by 3:
9,799,231 ÷ 3 = 3,266,410.3333
If the quotient is a whole number, then 3 and 3,266,410.3333 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 | 9,799,231 | |
| -1 | -9,799,231 |
Let's try dividing by 4:
9,799,231 ÷ 4 = 2,449,807.75
If the quotient is a whole number, then 4 and 2,449,807.75 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 | 9,799,231 | |
| -1 | 9,799,231 |
If you did it right, you will end up with this table:
| 1 | 13 | 19 | 97 | 247 | 409 | 1,261 | 1,843 | 5,317 | 7,771 | 23,959 | 39,673 | 101,023 | 515,749 | 753,787 | 9,799,231 |
| -1 | -13 | -19 | -97 | -247 | -409 | -1,261 | -1,843 | -5,317 | -7,771 | -23,959 | -39,673 | -101,023 | -515,749 | -753,787 | -9,799,231 |
Here are some more numbers to try:
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