A:
Positive:
1 x 7647614155 x 15295228311 x 6952376555 x 13904753853 x 8965554265 x 1793119383 x 8150516301 x 46915
Negative:
-1 x -764761415-5 x -152952283-11 x -69523765-55 x -13904753-853 x -896555-4265 x -179311-9383 x -81505-16301 x -46915
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 764,761,415, 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 | 764,761,415 | |
| -1 | -764,761,415 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 764,761,415.
Example:
1 x 764,761,415 = 764,761,415
and
-1 x -764,761,415 = 764,761,415
Notice both answers equal 764,761,415
With that explanation out of the way, let's continue. Next, we take the number 764,761,415 and divide it by 2:
764,761,415 ÷ 2 = 382,380,707.5
If the quotient is a whole number, then 2 and 382,380,707.5 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 | 764,761,415 | |
| -1 | -764,761,415 |
Now, we try dividing 764,761,415 by 3:
764,761,415 ÷ 3 = 254,920,471.6667
If the quotient is a whole number, then 3 and 254,920,471.6667 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 | 764,761,415 | |
| -1 | -764,761,415 |
Let's try dividing by 4:
764,761,415 ÷ 4 = 191,190,353.75
If the quotient is a whole number, then 4 and 191,190,353.75 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 | 764,761,415 | |
| -1 | 764,761,415 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 55 | 853 | 4,265 | 9,383 | 16,301 | 46,915 | 81,505 | 179,311 | 896,555 | 13,904,753 | 69,523,765 | 152,952,283 | 764,761,415 |
| -1 | -5 | -11 | -55 | -853 | -4,265 | -9,383 | -16,301 | -46,915 | -81,505 | -179,311 | -896,555 | -13,904,753 | -69,523,765 | -152,952,283 | -764,761,415 |
Here are some more numbers to try:
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