A:
Positive:
1 x 80187385311 x 7289762319 x 4220388761 x 13145473209 x 3836717671 x 11950431159 x 69186712749 x 62897
Negative:
-1 x -801873853-11 x -72897623-19 x -42203887-61 x -13145473-209 x -3836717-671 x -1195043-1159 x -691867-12749 x -62897
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 801,873,853, 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 | 801,873,853 | |
| -1 | -801,873,853 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 801,873,853.
Example:
1 x 801,873,853 = 801,873,853
and
-1 x -801,873,853 = 801,873,853
Notice both answers equal 801,873,853
With that explanation out of the way, let's continue. Next, we take the number 801,873,853 and divide it by 2:
801,873,853 ÷ 2 = 400,936,926.5
If the quotient is a whole number, then 2 and 400,936,926.5 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 | 801,873,853 | |
| -1 | -801,873,853 |
Now, we try dividing 801,873,853 by 3:
801,873,853 ÷ 3 = 267,291,284.3333
If the quotient is a whole number, then 3 and 267,291,284.3333 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 | 801,873,853 | |
| -1 | -801,873,853 |
Let's try dividing by 4:
801,873,853 ÷ 4 = 200,468,463.25
If the quotient is a whole number, then 4 and 200,468,463.25 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 | 801,873,853 | |
| -1 | 801,873,853 |
If you did it right, you will end up with this table:
| 1 | 11 | 19 | 61 | 209 | 671 | 1,159 | 12,749 | 62,897 | 691,867 | 1,195,043 | 3,836,717 | 13,145,473 | 42,203,887 | 72,897,623 | 801,873,853 |
| -1 | -11 | -19 | -61 | -209 | -671 | -1,159 | -12,749 | -62,897 | -691,867 | -1,195,043 | -3,836,717 | -13,145,473 | -42,203,887 | -72,897,623 | -801,873,853 |
Here are some more numbers to try:
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