A:
Positive:
1 x 2867602111 x 260691153 x 541057101 x 283921487 x 58883583 x 491871111 x 258115353 x 5357
Negative:
-1 x -28676021-11 x -2606911-53 x -541057-101 x -283921-487 x -58883-583 x -49187-1111 x -25811-5353 x -5357
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 28,676,021, 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 | 28,676,021 | |
| -1 | -28,676,021 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,676,021.
Example:
1 x 28,676,021 = 28,676,021
and
-1 x -28,676,021 = 28,676,021
Notice both answers equal 28,676,021
With that explanation out of the way, let's continue. Next, we take the number 28,676,021 and divide it by 2:
28,676,021 ÷ 2 = 14,338,010.5
If the quotient is a whole number, then 2 and 14,338,010.5 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 | 28,676,021 | |
| -1 | -28,676,021 |
Now, we try dividing 28,676,021 by 3:
28,676,021 ÷ 3 = 9,558,673.6667
If the quotient is a whole number, then 3 and 9,558,673.6667 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 | 28,676,021 | |
| -1 | -28,676,021 |
Let's try dividing by 4:
28,676,021 ÷ 4 = 7,169,005.25
If the quotient is a whole number, then 4 and 7,169,005.25 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 | 28,676,021 | |
| -1 | 28,676,021 |
If you did it right, you will end up with this table:
| 1 | 11 | 53 | 101 | 487 | 583 | 1,111 | 5,353 | 5,357 | 25,811 | 49,187 | 58,883 | 283,921 | 541,057 | 2,606,911 | 28,676,021 |
| -1 | -11 | -53 | -101 | -487 | -583 | -1,111 | -5,353 | -5,357 | -25,811 | -49,187 | -58,883 | -283,921 | -541,057 | -2,606,911 | -28,676,021 |
Here are some more numbers to try:
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