A:
Positive:
1 x 277832037 x 396902943 x 646121241 x 115283301 x 92303383 x 725411687 x 164692681 x 10363
Negative:
-1 x -27783203-7 x -3969029-43 x -646121-241 x -115283-301 x -92303-383 x -72541-1687 x -16469-2681 x -10363
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 27,783,203, 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 | 27,783,203 | |
| -1 | -27,783,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 27,783,203.
Example:
1 x 27,783,203 = 27,783,203
and
-1 x -27,783,203 = 27,783,203
Notice both answers equal 27,783,203
With that explanation out of the way, let's continue. Next, we take the number 27,783,203 and divide it by 2:
27,783,203 ÷ 2 = 13,891,601.5
If the quotient is a whole number, then 2 and 13,891,601.5 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 | 27,783,203 | |
| -1 | -27,783,203 |
Now, we try dividing 27,783,203 by 3:
27,783,203 ÷ 3 = 9,261,067.6667
If the quotient is a whole number, then 3 and 9,261,067.6667 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 | 27,783,203 | |
| -1 | -27,783,203 |
Let's try dividing by 4:
27,783,203 ÷ 4 = 6,945,800.75
If the quotient is a whole number, then 4 and 6,945,800.75 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 | 27,783,203 | |
| -1 | 27,783,203 |
If you did it right, you will end up with this table:
| 1 | 7 | 43 | 241 | 301 | 383 | 1,687 | 2,681 | 10,363 | 16,469 | 72,541 | 92,303 | 115,283 | 646,121 | 3,969,029 | 27,783,203 |
| -1 | -7 | -43 | -241 | -301 | -383 | -1,687 | -2,681 | -10,363 | -16,469 | -72,541 | -92,303 | -115,283 | -646,121 | -3,969,029 | -27,783,203 |
Here are some more numbers to try:
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