A:
Positive:
1 x 510316255 x 1020632519 x 268587525 x 204126595 x 537175125 x 408253475 x 1074352375 x 21487
Negative:
-1 x -51031625-5 x -10206325-19 x -2685875-25 x -2041265-95 x -537175-125 x -408253-475 x -107435-2375 x -21487
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 51,031,625, 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 | 51,031,625 | |
| -1 | -51,031,625 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,031,625.
Example:
1 x 51,031,625 = 51,031,625
and
-1 x -51,031,625 = 51,031,625
Notice both answers equal 51,031,625
With that explanation out of the way, let's continue. Next, we take the number 51,031,625 and divide it by 2:
51,031,625 ÷ 2 = 25,515,812.5
If the quotient is a whole number, then 2 and 25,515,812.5 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 | 51,031,625 | |
| -1 | -51,031,625 |
Now, we try dividing 51,031,625 by 3:
51,031,625 ÷ 3 = 17,010,541.6667
If the quotient is a whole number, then 3 and 17,010,541.6667 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 | 51,031,625 | |
| -1 | -51,031,625 |
Let's try dividing by 4:
51,031,625 ÷ 4 = 12,757,906.25
If the quotient is a whole number, then 4 and 12,757,906.25 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 | 51,031,625 | |
| -1 | 51,031,625 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 25 | 95 | 125 | 475 | 2,375 | 21,487 | 107,435 | 408,253 | 537,175 | 2,041,265 | 2,685,875 | 10,206,325 | 51,031,625 |
| -1 | -5 | -19 | -25 | -95 | -125 | -475 | -2,375 | -21,487 | -107,435 | -408,253 | -537,175 | -2,041,265 | -2,685,875 | -10,206,325 | -51,031,625 |
Here are some more numbers to try:
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