A:
Positive:
1 x 2809335111 x 255394113 x 216102771 x 395681143 x 196457781 x 35971923 x 304372767 x 10153
Negative:
-1 x -28093351-11 x -2553941-13 x -2161027-71 x -395681-143 x -196457-781 x -35971-923 x -30437-2767 x -10153
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 28,093,351, 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 | 28,093,351 | |
| -1 | -28,093,351 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,093,351.
Example:
1 x 28,093,351 = 28,093,351
and
-1 x -28,093,351 = 28,093,351
Notice both answers equal 28,093,351
With that explanation out of the way, let's continue. Next, we take the number 28,093,351 and divide it by 2:
28,093,351 ÷ 2 = 14,046,675.5
If the quotient is a whole number, then 2 and 14,046,675.5 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 | 28,093,351 | |
| -1 | -28,093,351 |
Now, we try dividing 28,093,351 by 3:
28,093,351 ÷ 3 = 9,364,450.3333
If the quotient is a whole number, then 3 and 9,364,450.3333 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 | 28,093,351 | |
| -1 | -28,093,351 |
Let's try dividing by 4:
28,093,351 ÷ 4 = 7,023,337.75
If the quotient is a whole number, then 4 and 7,023,337.75 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 | 28,093,351 | |
| -1 | 28,093,351 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 71 | 143 | 781 | 923 | 2,767 | 10,153 | 30,437 | 35,971 | 196,457 | 395,681 | 2,161,027 | 2,553,941 | 28,093,351 |
| -1 | -11 | -13 | -71 | -143 | -781 | -923 | -2,767 | -10,153 | -30,437 | -35,971 | -196,457 | -395,681 | -2,161,027 | -2,553,941 | -28,093,351 |
Here are some more numbers to try:
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