A:
Positive:
1 x 5106880911 x 464261923 x 222038371 x 719279253 x 201853781 x 653891633 x 312732843 x 17963
Negative:
-1 x -51068809-11 x -4642619-23 x -2220383-71 x -719279-253 x -201853-781 x -65389-1633 x -31273-2843 x -17963
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 51,068,809, 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 | 51,068,809 | |
| -1 | -51,068,809 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 51,068,809.
Example:
1 x 51,068,809 = 51,068,809
and
-1 x -51,068,809 = 51,068,809
Notice both answers equal 51,068,809
With that explanation out of the way, let's continue. Next, we take the number 51,068,809 and divide it by 2:
51,068,809 ÷ 2 = 25,534,404.5
If the quotient is a whole number, then 2 and 25,534,404.5 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 | 51,068,809 | |
| -1 | -51,068,809 |
Now, we try dividing 51,068,809 by 3:
51,068,809 ÷ 3 = 17,022,936.3333
If the quotient is a whole number, then 3 and 17,022,936.3333 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 | 51,068,809 | |
| -1 | -51,068,809 |
Let's try dividing by 4:
51,068,809 ÷ 4 = 12,767,202.25
If the quotient is a whole number, then 4 and 12,767,202.25 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 | 51,068,809 | |
| -1 | 51,068,809 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 71 | 253 | 781 | 1,633 | 2,843 | 17,963 | 31,273 | 65,389 | 201,853 | 719,279 | 2,220,383 | 4,642,619 | 51,068,809 |
| -1 | -11 | -23 | -71 | -253 | -781 | -1,633 | -2,843 | -17,963 | -31,273 | -65,389 | -201,853 | -719,279 | -2,220,383 | -4,642,619 | -51,068,809 |
Here are some more numbers to try:
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