A:
Positive:
1 x 7647585055 x 1529517017 x 10925121535 x 21850243347 x 22039151735 x 4407832429 x 31484512145 x 62969
Negative:
-1 x -764758505-5 x -152951701-7 x -109251215-35 x -21850243-347 x -2203915-1735 x -440783-2429 x -314845-12145 x -62969
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 764,758,505, 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 | 764,758,505 | |
| -1 | -764,758,505 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 764,758,505.
Example:
1 x 764,758,505 = 764,758,505
and
-1 x -764,758,505 = 764,758,505
Notice both answers equal 764,758,505
With that explanation out of the way, let's continue. Next, we take the number 764,758,505 and divide it by 2:
764,758,505 ÷ 2 = 382,379,252.5
If the quotient is a whole number, then 2 and 382,379,252.5 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 | 764,758,505 | |
| -1 | -764,758,505 |
Now, we try dividing 764,758,505 by 3:
764,758,505 ÷ 3 = 254,919,501.6667
If the quotient is a whole number, then 3 and 254,919,501.6667 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 | 764,758,505 | |
| -1 | -764,758,505 |
Let's try dividing by 4:
764,758,505 ÷ 4 = 191,189,626.25
If the quotient is a whole number, then 4 and 191,189,626.25 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 | 764,758,505 | |
| -1 | 764,758,505 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 347 | 1,735 | 2,429 | 12,145 | 62,969 | 314,845 | 440,783 | 2,203,915 | 21,850,243 | 109,251,215 | 152,951,701 | 764,758,505 |
| -1 | -5 | -7 | -35 | -347 | -1,735 | -2,429 | -12,145 | -62,969 | -314,845 | -440,783 | -2,203,915 | -21,850,243 | -109,251,215 | -152,951,701 | -764,758,505 |
Here are some more numbers to try:
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