A:
Positive:
1 x 7072138855 x 1414427777 x 10103055535 x 20206111257 x 27518051285 x 5503611799 x 3931158995 x 78623
Negative:
-1 x -707213885-5 x -141442777-7 x -101030555-35 x -20206111-257 x -2751805-1285 x -550361-1799 x -393115-8995 x -78623
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 707,213,885, 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 | 707,213,885 | |
| -1 | -707,213,885 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 707,213,885.
Example:
1 x 707,213,885 = 707,213,885
and
-1 x -707,213,885 = 707,213,885
Notice both answers equal 707,213,885
With that explanation out of the way, let's continue. Next, we take the number 707,213,885 and divide it by 2:
707,213,885 ÷ 2 = 353,606,942.5
If the quotient is a whole number, then 2 and 353,606,942.5 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 | 707,213,885 | |
| -1 | -707,213,885 |
Now, we try dividing 707,213,885 by 3:
707,213,885 ÷ 3 = 235,737,961.6667
If the quotient is a whole number, then 3 and 235,737,961.6667 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 | 707,213,885 | |
| -1 | -707,213,885 |
Let's try dividing by 4:
707,213,885 ÷ 4 = 176,803,471.25
If the quotient is a whole number, then 4 and 176,803,471.25 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 | 707,213,885 | |
| -1 | 707,213,885 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 257 | 1,285 | 1,799 | 8,995 | 78,623 | 393,115 | 550,361 | 2,751,805 | 20,206,111 | 101,030,555 | 141,442,777 | 707,213,885 |
| -1 | -5 | -7 | -35 | -257 | -1,285 | -1,799 | -8,995 | -78,623 | -393,115 | -550,361 | -2,751,805 | -20,206,111 | -101,030,555 | -141,442,777 | -707,213,885 |
Here are some more numbers to try:
Try the factor calculator