A:
Positive:
1 x 1620206637 x 2314580931 x 5226473149 x 1087387217 x 7466391043 x 1553414619 x 350775011 x 32333
Negative:
-1 x -162020663-7 x -23145809-31 x -5226473-149 x -1087387-217 x -746639-1043 x -155341-4619 x -35077-5011 x -32333
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 162,020,663, 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 | 162,020,663 | |
| -1 | -162,020,663 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,020,663.
Example:
1 x 162,020,663 = 162,020,663
and
-1 x -162,020,663 = 162,020,663
Notice both answers equal 162,020,663
With that explanation out of the way, let's continue. Next, we take the number 162,020,663 and divide it by 2:
162,020,663 ÷ 2 = 81,010,331.5
If the quotient is a whole number, then 2 and 81,010,331.5 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 | 162,020,663 | |
| -1 | -162,020,663 |
Now, we try dividing 162,020,663 by 3:
162,020,663 ÷ 3 = 54,006,887.6667
If the quotient is a whole number, then 3 and 54,006,887.6667 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 | 162,020,663 | |
| -1 | -162,020,663 |
Let's try dividing by 4:
162,020,663 ÷ 4 = 40,505,165.75
If the quotient is a whole number, then 4 and 40,505,165.75 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 | 162,020,663 | |
| -1 | 162,020,663 |
If you did it right, you will end up with this table:
| 1 | 7 | 31 | 149 | 217 | 1,043 | 4,619 | 5,011 | 32,333 | 35,077 | 155,341 | 746,639 | 1,087,387 | 5,226,473 | 23,145,809 | 162,020,663 |
| -1 | -7 | -31 | -149 | -217 | -1,043 | -4,619 | -5,011 | -32,333 | -35,077 | -155,341 | -746,639 | -1,087,387 | -5,226,473 | -23,145,809 | -162,020,663 |
Here are some more numbers to try:
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