A:
Positive:
1 x 5112226123 x 222270759 x 866479101 x 506161373 x 1370571357 x 376732323 x 220075959 x 8579
Negative:
-1 x -51122261-23 x -2222707-59 x -866479-101 x -506161-373 x -137057-1357 x -37673-2323 x -22007-5959 x -8579
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 51,122,261, 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 | 51,122,261 | |
| -1 | -51,122,261 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,122,261.
Example:
1 x 51,122,261 = 51,122,261
and
-1 x -51,122,261 = 51,122,261
Notice both answers equal 51,122,261
With that explanation out of the way, let's continue. Next, we take the number 51,122,261 and divide it by 2:
51,122,261 ÷ 2 = 25,561,130.5
If the quotient is a whole number, then 2 and 25,561,130.5 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 | 51,122,261 | |
| -1 | -51,122,261 |
Now, we try dividing 51,122,261 by 3:
51,122,261 ÷ 3 = 17,040,753.6667
If the quotient is a whole number, then 3 and 17,040,753.6667 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 | 51,122,261 | |
| -1 | -51,122,261 |
Let's try dividing by 4:
51,122,261 ÷ 4 = 12,780,565.25
If the quotient is a whole number, then 4 and 12,780,565.25 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 | 51,122,261 | |
| -1 | 51,122,261 |
If you did it right, you will end up with this table:
| 1 | 23 | 59 | 101 | 373 | 1,357 | 2,323 | 5,959 | 8,579 | 22,007 | 37,673 | 137,057 | 506,161 | 866,479 | 2,222,707 | 51,122,261 |
| -1 | -23 | -59 | -101 | -373 | -1,357 | -2,323 | -5,959 | -8,579 | -22,007 | -37,673 | -137,057 | -506,161 | -866,479 | -2,222,707 | -51,122,261 |
Here are some more numbers to try:
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