A:
Positive:
1 x 85646271711 x 7786024737 x 2314764147 x 18222611407 x 2104331517 x 16566011739 x 49250319129 x 44773
Negative:
-1 x -856462717-11 x -77860247-37 x -23147641-47 x -18222611-407 x -2104331-517 x -1656601-1739 x -492503-19129 x -44773
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 856,462,717, 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 | 856,462,717 | |
| -1 | -856,462,717 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 856,462,717.
Example:
1 x 856,462,717 = 856,462,717
and
-1 x -856,462,717 = 856,462,717
Notice both answers equal 856,462,717
With that explanation out of the way, let's continue. Next, we take the number 856,462,717 and divide it by 2:
856,462,717 ÷ 2 = 428,231,358.5
If the quotient is a whole number, then 2 and 428,231,358.5 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 | 856,462,717 | |
| -1 | -856,462,717 |
Now, we try dividing 856,462,717 by 3:
856,462,717 ÷ 3 = 285,487,572.3333
If the quotient is a whole number, then 3 and 285,487,572.3333 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 | 856,462,717 | |
| -1 | -856,462,717 |
Let's try dividing by 4:
856,462,717 ÷ 4 = 214,115,679.25
If the quotient is a whole number, then 4 and 214,115,679.25 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 | 856,462,717 | |
| -1 | 856,462,717 |
If you did it right, you will end up with this table:
| 1 | 11 | 37 | 47 | 407 | 517 | 1,739 | 19,129 | 44,773 | 492,503 | 1,656,601 | 2,104,331 | 18,222,611 | 23,147,641 | 77,860,247 | 856,462,717 |
| -1 | -11 | -37 | -47 | -407 | -517 | -1,739 | -19,129 | -44,773 | -492,503 | -1,656,601 | -2,104,331 | -18,222,611 | -23,147,641 | -77,860,247 | -856,462,717 |
Here are some more numbers to try:
Try the factor calculator