A:
Positive:
1 x 7636860777 x 10909801111 x 6942600777 x 9918001673 x 11347494711 x 1621077403 x 10315914737 x 51821
Negative:
-1 x -763686077-7 x -109098011-11 x -69426007-77 x -9918001-673 x -1134749-4711 x -162107-7403 x -103159-14737 x -51821
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 763,686,077, 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 | 763,686,077 | |
| -1 | -763,686,077 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 763,686,077.
Example:
1 x 763,686,077 = 763,686,077
and
-1 x -763,686,077 = 763,686,077
Notice both answers equal 763,686,077
With that explanation out of the way, let's continue. Next, we take the number 763,686,077 and divide it by 2:
763,686,077 ÷ 2 = 381,843,038.5
If the quotient is a whole number, then 2 and 381,843,038.5 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 | 763,686,077 | |
| -1 | -763,686,077 |
Now, we try dividing 763,686,077 by 3:
763,686,077 ÷ 3 = 254,562,025.6667
If the quotient is a whole number, then 3 and 254,562,025.6667 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 | 763,686,077 | |
| -1 | -763,686,077 |
Let's try dividing by 4:
763,686,077 ÷ 4 = 190,921,519.25
If the quotient is a whole number, then 4 and 190,921,519.25 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 | 763,686,077 | |
| -1 | 763,686,077 |
If you did it right, you will end up with this table:
| 1 | 7 | 11 | 77 | 673 | 4,711 | 7,403 | 14,737 | 51,821 | 103,159 | 162,107 | 1,134,749 | 9,918,001 | 69,426,007 | 109,098,011 | 763,686,077 |
| -1 | -7 | -11 | -77 | -673 | -4,711 | -7,403 | -14,737 | -51,821 | -103,159 | -162,107 | -1,134,749 | -9,918,001 | -69,426,007 | -109,098,011 | -763,686,077 |
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