A:
Positive:
1 x 8548240917 x 502837743 x 1987963337 x 253657347 x 246347731 x 1169395729 x 149215899 x 14491
Negative:
-1 x -85482409-17 x -5028377-43 x -1987963-337 x -253657-347 x -246347-731 x -116939-5729 x -14921-5899 x -14491
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 85,482,409, 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 | 85,482,409 | |
| -1 | -85,482,409 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 85,482,409.
Example:
1 x 85,482,409 = 85,482,409
and
-1 x -85,482,409 = 85,482,409
Notice both answers equal 85,482,409
With that explanation out of the way, let's continue. Next, we take the number 85,482,409 and divide it by 2:
85,482,409 ÷ 2 = 42,741,204.5
If the quotient is a whole number, then 2 and 42,741,204.5 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 | 85,482,409 | |
| -1 | -85,482,409 |
Now, we try dividing 85,482,409 by 3:
85,482,409 ÷ 3 = 28,494,136.3333
If the quotient is a whole number, then 3 and 28,494,136.3333 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 | 85,482,409 | |
| -1 | -85,482,409 |
Let's try dividing by 4:
85,482,409 ÷ 4 = 21,370,602.25
If the quotient is a whole number, then 4 and 21,370,602.25 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 | 85,482,409 | |
| -1 | 85,482,409 |
If you did it right, you will end up with this table:
| 1 | 17 | 43 | 337 | 347 | 731 | 5,729 | 5,899 | 14,491 | 14,921 | 116,939 | 246,347 | 253,657 | 1,987,963 | 5,028,377 | 85,482,409 |
| -1 | -17 | -43 | -337 | -347 | -731 | -5,729 | -5,899 | -14,491 | -14,921 | -116,939 | -246,347 | -253,657 | -1,987,963 | -5,028,377 | -85,482,409 |
Here are some more numbers to try:
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