A:
Positive:
1 x 71810077911 x 6528188923 x 31221773253 x 28383431031 x 6965092753 x 26084311341 x 6331923713 x 30283
Negative:
-1 x -718100779-11 x -65281889-23 x -31221773-253 x -2838343-1031 x -696509-2753 x -260843-11341 x -63319-23713 x -30283
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 718,100,779, 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 | 718,100,779 | |
| -1 | -718,100,779 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 718,100,779.
Example:
1 x 718,100,779 = 718,100,779
and
-1 x -718,100,779 = 718,100,779
Notice both answers equal 718,100,779
With that explanation out of the way, let's continue. Next, we take the number 718,100,779 and divide it by 2:
718,100,779 ÷ 2 = 359,050,389.5
If the quotient is a whole number, then 2 and 359,050,389.5 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 | 718,100,779 | |
| -1 | -718,100,779 |
Now, we try dividing 718,100,779 by 3:
718,100,779 ÷ 3 = 239,366,926.3333
If the quotient is a whole number, then 3 and 239,366,926.3333 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 | 718,100,779 | |
| -1 | -718,100,779 |
Let's try dividing by 4:
718,100,779 ÷ 4 = 179,525,194.75
If the quotient is a whole number, then 4 and 179,525,194.75 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 | 718,100,779 | |
| -1 | 718,100,779 |
If you did it right, you will end up with this table:
| 1 | 11 | 23 | 253 | 1,031 | 2,753 | 11,341 | 23,713 | 30,283 | 63,319 | 260,843 | 696,509 | 2,838,343 | 31,221,773 | 65,281,889 | 718,100,779 |
| -1 | -11 | -23 | -253 | -1,031 | -2,753 | -11,341 | -23,713 | -30,283 | -63,319 | -260,843 | -696,509 | -2,838,343 | -31,221,773 | -65,281,889 | -718,100,779 |
Here are some more numbers to try:
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