A:
Positive:
1 x 859009455 x 1718018913 x 660776541 x 209514565 x 1321553205 x 419029533 x 1611652665 x 32233
Negative:
-1 x -85900945-5 x -17180189-13 x -6607765-41 x -2095145-65 x -1321553-205 x -419029-533 x -161165-2665 x -32233
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 85,900,945, 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 | 85,900,945 | |
| -1 | -85,900,945 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,900,945.
Example:
1 x 85,900,945 = 85,900,945
and
-1 x -85,900,945 = 85,900,945
Notice both answers equal 85,900,945
With that explanation out of the way, let's continue. Next, we take the number 85,900,945 and divide it by 2:
85,900,945 ÷ 2 = 42,950,472.5
If the quotient is a whole number, then 2 and 42,950,472.5 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 | 85,900,945 | |
| -1 | -85,900,945 |
Now, we try dividing 85,900,945 by 3:
85,900,945 ÷ 3 = 28,633,648.3333
If the quotient is a whole number, then 3 and 28,633,648.3333 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 | 85,900,945 | |
| -1 | -85,900,945 |
Let's try dividing by 4:
85,900,945 ÷ 4 = 21,475,236.25
If the quotient is a whole number, then 4 and 21,475,236.25 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 | 85,900,945 | |
| -1 | 85,900,945 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 41 | 65 | 205 | 533 | 2,665 | 32,233 | 161,165 | 419,029 | 1,321,553 | 2,095,145 | 6,607,765 | 17,180,189 | 85,900,945 |
| -1 | -5 | -13 | -41 | -65 | -205 | -533 | -2,665 | -32,233 | -161,165 | -419,029 | -1,321,553 | -2,095,145 | -6,607,765 | -17,180,189 | -85,900,945 |
Here are some more numbers to try:
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