A:
Positive:
1 x 286760117 x 409657313 x 220584791 x 315121181 x 1584311267 x 226331741 x 164712353 x 12187
Negative:
-1 x -28676011-7 x -4096573-13 x -2205847-91 x -315121-181 x -158431-1267 x -22633-1741 x -16471-2353 x -12187
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 28,676,011, 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 | 28,676,011 | |
| -1 | -28,676,011 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,676,011.
Example:
1 x 28,676,011 = 28,676,011
and
-1 x -28,676,011 = 28,676,011
Notice both answers equal 28,676,011
With that explanation out of the way, let's continue. Next, we take the number 28,676,011 and divide it by 2:
28,676,011 ÷ 2 = 14,338,005.5
If the quotient is a whole number, then 2 and 14,338,005.5 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 | 28,676,011 | |
| -1 | -28,676,011 |
Now, we try dividing 28,676,011 by 3:
28,676,011 ÷ 3 = 9,558,670.3333
If the quotient is a whole number, then 3 and 9,558,670.3333 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 | 28,676,011 | |
| -1 | -28,676,011 |
Let's try dividing by 4:
28,676,011 ÷ 4 = 7,169,002.75
If the quotient is a whole number, then 4 and 7,169,002.75 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 | 28,676,011 | |
| -1 | 28,676,011 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 181 | 1,267 | 1,741 | 2,353 | 12,187 | 16,471 | 22,633 | 158,431 | 315,121 | 2,205,847 | 4,096,573 | 28,676,011 |
| -1 | -7 | -13 | -91 | -181 | -1,267 | -1,741 | -2,353 | -12,187 | -16,471 | -22,633 | -158,431 | -315,121 | -2,205,847 | -4,096,573 | -28,676,011 |
Here are some more numbers to try:
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