A:
Positive:
1 x 51030882111 x 4639171119 x 2685835943 x 11867647209 x 2441669473 x 1078877817 x 6246138987 x 56783
Negative:
-1 x -510308821-11 x -46391711-19 x -26858359-43 x -11867647-209 x -2441669-473 x -1078877-817 x -624613-8987 x -56783
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 510,308,821, 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 | 510,308,821 | |
| -1 | -510,308,821 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 510,308,821.
Example:
1 x 510,308,821 = 510,308,821
and
-1 x -510,308,821 = 510,308,821
Notice both answers equal 510,308,821
With that explanation out of the way, let's continue. Next, we take the number 510,308,821 and divide it by 2:
510,308,821 ÷ 2 = 255,154,410.5
If the quotient is a whole number, then 2 and 255,154,410.5 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 | 510,308,821 | |
| -1 | -510,308,821 |
Now, we try dividing 510,308,821 by 3:
510,308,821 ÷ 3 = 170,102,940.3333
If the quotient is a whole number, then 3 and 170,102,940.3333 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 | 510,308,821 | |
| -1 | -510,308,821 |
Let's try dividing by 4:
510,308,821 ÷ 4 = 127,577,205.25
If the quotient is a whole number, then 4 and 127,577,205.25 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 | 510,308,821 | |
| -1 | 510,308,821 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 43 | 209 | 473 | 817 | 8,987 | 56,783 | 624,613 | 1,078,877 | 2,441,669 | 11,867,647 | 26,858,359 | 46,391,711 | 510,308,821 |
| -1 | -11 | -19 | -43 | -209 | -473 | -817 | -8,987 | -56,783 | -624,613 | -1,078,877 | -2,441,669 | -11,867,647 | -26,858,359 | -46,391,711 | -510,308,821 |
Here are some more numbers to try:
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