A:
Positive:
1 x 510312655 x 1020625341 x 124466589 x 573385205 x 248933445 x 1146772797 x 182453649 x 13985
Negative:
-1 x -51031265-5 x -10206253-41 x -1244665-89 x -573385-205 x -248933-445 x -114677-2797 x -18245-3649 x -13985
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 51,031,265, 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 | 51,031,265 | |
| -1 | -51,031,265 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,031,265.
Example:
1 x 51,031,265 = 51,031,265
and
-1 x -51,031,265 = 51,031,265
Notice both answers equal 51,031,265
With that explanation out of the way, let's continue. Next, we take the number 51,031,265 and divide it by 2:
51,031,265 ÷ 2 = 25,515,632.5
If the quotient is a whole number, then 2 and 25,515,632.5 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 | 51,031,265 | |
| -1 | -51,031,265 |
Now, we try dividing 51,031,265 by 3:
51,031,265 ÷ 3 = 17,010,421.6667
If the quotient is a whole number, then 3 and 17,010,421.6667 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 | 51,031,265 | |
| -1 | -51,031,265 |
Let's try dividing by 4:
51,031,265 ÷ 4 = 12,757,816.25
If the quotient is a whole number, then 4 and 12,757,816.25 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 | 51,031,265 | |
| -1 | 51,031,265 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 89 | 205 | 445 | 2,797 | 3,649 | 13,985 | 18,245 | 114,677 | 248,933 | 573,385 | 1,244,665 | 10,206,253 | 51,031,265 |
| -1 | -5 | -41 | -89 | -205 | -445 | -2,797 | -3,649 | -13,985 | -18,245 | -114,677 | -248,933 | -573,385 | -1,244,665 | -10,206,253 | -51,031,265 |
Here are some more numbers to try:
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