A:
Positive:
1 x 7660562155 x 153211243101 x 7584715505 x 1516943683 x 11216052221 x 3449153415 x 22432111105 x 68983
Negative:
-1 x -766056215-5 x -153211243-101 x -7584715-505 x -1516943-683 x -1121605-2221 x -344915-3415 x -224321-11105 x -68983
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 766,056,215, 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 | 766,056,215 | |
| -1 | -766,056,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 766,056,215.
Example:
1 x 766,056,215 = 766,056,215
and
-1 x -766,056,215 = 766,056,215
Notice both answers equal 766,056,215
With that explanation out of the way, let's continue. Next, we take the number 766,056,215 and divide it by 2:
766,056,215 ÷ 2 = 383,028,107.5
If the quotient is a whole number, then 2 and 383,028,107.5 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 | 766,056,215 | |
| -1 | -766,056,215 |
Now, we try dividing 766,056,215 by 3:
766,056,215 ÷ 3 = 255,352,071.6667
If the quotient is a whole number, then 3 and 255,352,071.6667 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 | 766,056,215 | |
| -1 | -766,056,215 |
Let's try dividing by 4:
766,056,215 ÷ 4 = 191,514,053.75
If the quotient is a whole number, then 4 and 191,514,053.75 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 | 766,056,215 | |
| -1 | 766,056,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 101 | 505 | 683 | 2,221 | 3,415 | 11,105 | 68,983 | 224,321 | 344,915 | 1,121,605 | 1,516,943 | 7,584,715 | 153,211,243 | 766,056,215 |
| -1 | -5 | -101 | -505 | -683 | -2,221 | -3,415 | -11,105 | -68,983 | -224,321 | -344,915 | -1,121,605 | -1,516,943 | -7,584,715 | -153,211,243 | -766,056,215 |
Here are some more numbers to try:
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