A:
Positive:
1 x 994903077 x 1421290117 x 5852371119 x 836053797 x 1248311049 x 948435579 x 178337343 x 13549
Negative:
-1 x -99490307-7 x -14212901-17 x -5852371-119 x -836053-797 x -124831-1049 x -94843-5579 x -17833-7343 x -13549
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 99,490,307, 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 | 99,490,307 | |
| -1 | -99,490,307 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 99,490,307.
Example:
1 x 99,490,307 = 99,490,307
and
-1 x -99,490,307 = 99,490,307
Notice both answers equal 99,490,307
With that explanation out of the way, let's continue. Next, we take the number 99,490,307 and divide it by 2:
99,490,307 ÷ 2 = 49,745,153.5
If the quotient is a whole number, then 2 and 49,745,153.5 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 | 99,490,307 | |
| -1 | -99,490,307 |
Now, we try dividing 99,490,307 by 3:
99,490,307 ÷ 3 = 33,163,435.6667
If the quotient is a whole number, then 3 and 33,163,435.6667 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 | 99,490,307 | |
| -1 | -99,490,307 |
Let's try dividing by 4:
99,490,307 ÷ 4 = 24,872,576.75
If the quotient is a whole number, then 4 and 24,872,576.75 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 | 99,490,307 | |
| -1 | 99,490,307 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 119 | 797 | 1,049 | 5,579 | 7,343 | 13,549 | 17,833 | 94,843 | 124,831 | 836,053 | 5,852,371 | 14,212,901 | 99,490,307 |
| -1 | -7 | -17 | -119 | -797 | -1,049 | -5,579 | -7,343 | -13,549 | -17,833 | -94,843 | -124,831 | -836,053 | -5,852,371 | -14,212,901 | -99,490,307 |
Here are some more numbers to try:
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