A:
Positive:
1 x 5105000655 x 10210001323 x 22195655115 x 4439131491 x 10397152455 x 2079439041 x 5646511293 x 45205
Negative:
-1 x -510500065-5 x -102100013-23 x -22195655-115 x -4439131-491 x -1039715-2455 x -207943-9041 x -56465-11293 x -45205
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 510,500,065, 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 | 510,500,065 | |
| -1 | -510,500,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 510,500,065.
Example:
1 x 510,500,065 = 510,500,065
and
-1 x -510,500,065 = 510,500,065
Notice both answers equal 510,500,065
With that explanation out of the way, let's continue. Next, we take the number 510,500,065 and divide it by 2:
510,500,065 ÷ 2 = 255,250,032.5
If the quotient is a whole number, then 2 and 255,250,032.5 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 | 510,500,065 | |
| -1 | -510,500,065 |
Now, we try dividing 510,500,065 by 3:
510,500,065 ÷ 3 = 170,166,688.3333
If the quotient is a whole number, then 3 and 170,166,688.3333 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 | 510,500,065 | |
| -1 | -510,500,065 |
Let's try dividing by 4:
510,500,065 ÷ 4 = 127,625,016.25
If the quotient is a whole number, then 4 and 127,625,016.25 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 | 510,500,065 | |
| -1 | 510,500,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 491 | 2,455 | 9,041 | 11,293 | 45,205 | 56,465 | 207,943 | 1,039,715 | 4,439,131 | 22,195,655 | 102,100,013 | 510,500,065 |
| -1 | -5 | -23 | -115 | -491 | -2,455 | -9,041 | -11,293 | -45,205 | -56,465 | -207,943 | -1,039,715 | -4,439,131 | -22,195,655 | -102,100,013 | -510,500,065 |
Here are some more numbers to try:
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