A:
Positive:
1 x 1620021417 x 2314316359 x 2745799223 x 726467413 x 3922571561 x 1037811759 x 9209912313 x 13157
Negative:
-1 x -162002141-7 x -23143163-59 x -2745799-223 x -726467-413 x -392257-1561 x -103781-1759 x -92099-12313 x -13157
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 162,002,141, 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 | 162,002,141 | |
| -1 | -162,002,141 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 162,002,141.
Example:
1 x 162,002,141 = 162,002,141
and
-1 x -162,002,141 = 162,002,141
Notice both answers equal 162,002,141
With that explanation out of the way, let's continue. Next, we take the number 162,002,141 and divide it by 2:
162,002,141 ÷ 2 = 81,001,070.5
If the quotient is a whole number, then 2 and 81,001,070.5 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 | 162,002,141 | |
| -1 | -162,002,141 |
Now, we try dividing 162,002,141 by 3:
162,002,141 ÷ 3 = 54,000,713.6667
If the quotient is a whole number, then 3 and 54,000,713.6667 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 | 162,002,141 | |
| -1 | -162,002,141 |
Let's try dividing by 4:
162,002,141 ÷ 4 = 40,500,535.25
If the quotient is a whole number, then 4 and 40,500,535.25 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 | 162,002,141 | |
| -1 | 162,002,141 |
If you did it right, you will end up with this table:
| 1 | 7 | 59 | 223 | 413 | 1,561 | 1,759 | 12,313 | 13,157 | 92,099 | 103,781 | 392,257 | 726,467 | 2,745,799 | 23,143,163 | 162,002,141 |
| -1 | -7 | -59 | -223 | -413 | -1,561 | -1,759 | -12,313 | -13,157 | -92,099 | -103,781 | -392,257 | -726,467 | -2,745,799 | -23,143,163 | -162,002,141 |
Here are some more numbers to try:
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