A:
Positive:
1 x 856188977 x 1223127113 x 658606991 x 940867809 x 1058331163 x 736195663 x 151198141 x 10517
Negative:
-1 x -85618897-7 x -12231271-13 x -6586069-91 x -940867-809 x -105833-1163 x -73619-5663 x -15119-8141 x -10517
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 85,618,897, 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 | 85,618,897 | |
| -1 | -85,618,897 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,618,897.
Example:
1 x 85,618,897 = 85,618,897
and
-1 x -85,618,897 = 85,618,897
Notice both answers equal 85,618,897
With that explanation out of the way, let's continue. Next, we take the number 85,618,897 and divide it by 2:
85,618,897 ÷ 2 = 42,809,448.5
If the quotient is a whole number, then 2 and 42,809,448.5 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 | 85,618,897 | |
| -1 | -85,618,897 |
Now, we try dividing 85,618,897 by 3:
85,618,897 ÷ 3 = 28,539,632.3333
If the quotient is a whole number, then 3 and 28,539,632.3333 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 | 85,618,897 | |
| -1 | -85,618,897 |
Let's try dividing by 4:
85,618,897 ÷ 4 = 21,404,724.25
If the quotient is a whole number, then 4 and 21,404,724.25 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 | 85,618,897 | |
| -1 | 85,618,897 |
If you did it right, you will end up with this table:
| 1 | 7 | 13 | 91 | 809 | 1,163 | 5,663 | 8,141 | 10,517 | 15,119 | 73,619 | 105,833 | 940,867 | 6,586,069 | 12,231,271 | 85,618,897 |
| -1 | -7 | -13 | -91 | -809 | -1,163 | -5,663 | -8,141 | -10,517 | -15,119 | -73,619 | -105,833 | -940,867 | -6,586,069 | -12,231,271 | -85,618,897 |
Here are some more numbers to try:
Try the factor calculator