A:
Positive:
1 x 7655355655 x 15310711323 x 33284155115 x 6656831179 x 4276735895 x 8553474117 x 18594520585 x 37189
Negative:
-1 x -765535565-5 x -153107113-23 x -33284155-115 x -6656831-179 x -4276735-895 x -855347-4117 x -185945-20585 x -37189
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 765,535,565, 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 | 765,535,565 | |
| -1 | -765,535,565 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 765,535,565.
Example:
1 x 765,535,565 = 765,535,565
and
-1 x -765,535,565 = 765,535,565
Notice both answers equal 765,535,565
With that explanation out of the way, let's continue. Next, we take the number 765,535,565 and divide it by 2:
765,535,565 ÷ 2 = 382,767,782.5
If the quotient is a whole number, then 2 and 382,767,782.5 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 | 765,535,565 | |
| -1 | -765,535,565 |
Now, we try dividing 765,535,565 by 3:
765,535,565 ÷ 3 = 255,178,521.6667
If the quotient is a whole number, then 3 and 255,178,521.6667 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 | 765,535,565 | |
| -1 | -765,535,565 |
Let's try dividing by 4:
765,535,565 ÷ 4 = 191,383,891.25
If the quotient is a whole number, then 4 and 191,383,891.25 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 | 765,535,565 | |
| -1 | 765,535,565 |
If you did it right, you will end up with this table:
| 1 | 5 | 23 | 115 | 179 | 895 | 4,117 | 20,585 | 37,189 | 185,945 | 855,347 | 4,276,735 | 6,656,831 | 33,284,155 | 153,107,113 | 765,535,565 |
| -1 | -5 | -23 | -115 | -179 | -895 | -4,117 | -20,585 | -37,189 | -185,945 | -855,347 | -4,276,735 | -6,656,831 | -33,284,155 | -153,107,113 | -765,535,565 |
Here are some more numbers to try:
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