A:
Positive:
1 x 77623042117 x 4566061331 x 2503969153 x 14645857527 x 1472923901 x 8615211643 x 47244727791 x 27931
Negative:
-1 x -776230421-17 x -45660613-31 x -25039691-53 x -14645857-527 x -1472923-901 x -861521-1643 x -472447-27791 x -27931
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 776,230,421, 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 | 776,230,421 | |
| -1 | -776,230,421 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 776,230,421.
Example:
1 x 776,230,421 = 776,230,421
and
-1 x -776,230,421 = 776,230,421
Notice both answers equal 776,230,421
With that explanation out of the way, let's continue. Next, we take the number 776,230,421 and divide it by 2:
776,230,421 ÷ 2 = 388,115,210.5
If the quotient is a whole number, then 2 and 388,115,210.5 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 | 776,230,421 | |
| -1 | -776,230,421 |
Now, we try dividing 776,230,421 by 3:
776,230,421 ÷ 3 = 258,743,473.6667
If the quotient is a whole number, then 3 and 258,743,473.6667 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 | 776,230,421 | |
| -1 | -776,230,421 |
Let's try dividing by 4:
776,230,421 ÷ 4 = 194,057,605.25
If the quotient is a whole number, then 4 and 194,057,605.25 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 | 776,230,421 | |
| -1 | 776,230,421 |
If you did it right, you will end up with this table:
| 1 | 17 | 31 | 53 | 527 | 901 | 1,643 | 27,791 | 27,931 | 472,447 | 861,521 | 1,472,923 | 14,645,857 | 25,039,691 | 45,660,613 | 776,230,421 |
| -1 | -17 | -31 | -53 | -527 | -901 | -1,643 | -27,791 | -27,931 | -472,447 | -861,521 | -1,472,923 | -14,645,857 | -25,039,691 | -45,660,613 | -776,230,421 |
Here are some more numbers to try:
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