A:
Positive:
1 x 247709455 x 495418937 x 669485185 x 133897257 x 96385521 x 475451285 x 192772605 x 9509
Negative:
-1 x -24770945-5 x -4954189-37 x -669485-185 x -133897-257 x -96385-521 x -47545-1285 x -19277-2605 x -9509
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 24,770,945, 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 | 24,770,945 | |
| -1 | -24,770,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 24,770,945.
Example:
1 x 24,770,945 = 24,770,945
and
-1 x -24,770,945 = 24,770,945
Notice both answers equal 24,770,945
With that explanation out of the way, let's continue. Next, we take the number 24,770,945 and divide it by 2:
24,770,945 ÷ 2 = 12,385,472.5
If the quotient is a whole number, then 2 and 12,385,472.5 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 | 24,770,945 | |
| -1 | -24,770,945 |
Now, we try dividing 24,770,945 by 3:
24,770,945 ÷ 3 = 8,256,981.6667
If the quotient is a whole number, then 3 and 8,256,981.6667 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 | 24,770,945 | |
| -1 | -24,770,945 |
Let's try dividing by 4:
24,770,945 ÷ 4 = 6,192,736.25
If the quotient is a whole number, then 4 and 6,192,736.25 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 | 24,770,945 | |
| -1 | 24,770,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 37 | 185 | 257 | 521 | 1,285 | 2,605 | 9,509 | 19,277 | 47,545 | 96,385 | 133,897 | 669,485 | 4,954,189 | 24,770,945 |
| -1 | -5 | -37 | -185 | -257 | -521 | -1,285 | -2,605 | -9,509 | -19,277 | -47,545 | -96,385 | -133,897 | -669,485 | -4,954,189 | -24,770,945 |
Here are some more numbers to try:
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