A:
Positive:
1 x 286773137 x 409675989 x 322217191 x 150143241 x 118993623 x 460311337 x 214491687 x 16999
Negative:
-1 x -28677313-7 x -4096759-89 x -322217-191 x -150143-241 x -118993-623 x -46031-1337 x -21449-1687 x -16999
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 28,677,313, 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 | 28,677,313 | |
| -1 | -28,677,313 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 28,677,313.
Example:
1 x 28,677,313 = 28,677,313
and
-1 x -28,677,313 = 28,677,313
Notice both answers equal 28,677,313
With that explanation out of the way, let's continue. Next, we take the number 28,677,313 and divide it by 2:
28,677,313 ÷ 2 = 14,338,656.5
If the quotient is a whole number, then 2 and 14,338,656.5 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 | 28,677,313 | |
| -1 | -28,677,313 |
Now, we try dividing 28,677,313 by 3:
28,677,313 ÷ 3 = 9,559,104.3333
If the quotient is a whole number, then 3 and 9,559,104.3333 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 | 28,677,313 | |
| -1 | -28,677,313 |
Let's try dividing by 4:
28,677,313 ÷ 4 = 7,169,328.25
If the quotient is a whole number, then 4 and 7,169,328.25 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 | 28,677,313 | |
| -1 | 28,677,313 |
If you did it right, you will end up with this table:
| 1 | 7 | 89 | 191 | 241 | 623 | 1,337 | 1,687 | 16,999 | 21,449 | 46,031 | 118,993 | 150,143 | 322,217 | 4,096,759 | 28,677,313 |
| -1 | -7 | -89 | -191 | -241 | -623 | -1,337 | -1,687 | -16,999 | -21,449 | -46,031 | -118,993 | -150,143 | -322,217 | -4,096,759 | -28,677,313 |
Here are some more numbers to try:
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