A:
Positive:
1 x 1624355397 x 2320507749 x 3315011139 x 1168601343 x 473573973 x 1669433407 x 476776811 x 23849
Negative:
-1 x -162435539-7 x -23205077-49 x -3315011-139 x -1168601-343 x -473573-973 x -166943-3407 x -47677-6811 x -23849
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 162,435,539, 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 | 162,435,539 | |
| -1 | -162,435,539 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,435,539.
Example:
1 x 162,435,539 = 162,435,539
and
-1 x -162,435,539 = 162,435,539
Notice both answers equal 162,435,539
With that explanation out of the way, let's continue. Next, we take the number 162,435,539 and divide it by 2:
162,435,539 ÷ 2 = 81,217,769.5
If the quotient is a whole number, then 2 and 81,217,769.5 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 | 162,435,539 | |
| -1 | -162,435,539 |
Now, we try dividing 162,435,539 by 3:
162,435,539 ÷ 3 = 54,145,179.6667
If the quotient is a whole number, then 3 and 54,145,179.6667 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 | 162,435,539 | |
| -1 | -162,435,539 |
Let's try dividing by 4:
162,435,539 ÷ 4 = 40,608,884.75
If the quotient is a whole number, then 4 and 40,608,884.75 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 | 162,435,539 | |
| -1 | 162,435,539 |
If you did it right, you will end up with this table:
| 1 | 7 | 49 | 139 | 343 | 973 | 3,407 | 6,811 | 23,849 | 47,677 | 166,943 | 473,573 | 1,168,601 | 3,315,011 | 23,205,077 | 162,435,539 |
| -1 | -7 | -49 | -139 | -343 | -973 | -3,407 | -6,811 | -23,849 | -47,677 | -166,943 | -473,573 | -1,168,601 | -3,315,011 | -23,205,077 | -162,435,539 |
Here are some more numbers to try:
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