A:
Positive:
1 x 1650330717 x 2357615373 x 2260727127 x 1299473511 x 322961889 x 1856392543 x 648979271 x 17801
Negative:
-1 x -165033071-7 x -23576153-73 x -2260727-127 x -1299473-511 x -322961-889 x -185639-2543 x -64897-9271 x -17801
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 165,033,071, 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 | 165,033,071 | |
| -1 | -165,033,071 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,033,071.
Example:
1 x 165,033,071 = 165,033,071
and
-1 x -165,033,071 = 165,033,071
Notice both answers equal 165,033,071
With that explanation out of the way, let's continue. Next, we take the number 165,033,071 and divide it by 2:
165,033,071 ÷ 2 = 82,516,535.5
If the quotient is a whole number, then 2 and 82,516,535.5 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 | 165,033,071 | |
| -1 | -165,033,071 |
Now, we try dividing 165,033,071 by 3:
165,033,071 ÷ 3 = 55,011,023.6667
If the quotient is a whole number, then 3 and 55,011,023.6667 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 | 165,033,071 | |
| -1 | -165,033,071 |
Let's try dividing by 4:
165,033,071 ÷ 4 = 41,258,267.75
If the quotient is a whole number, then 4 and 41,258,267.75 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 | 165,033,071 | |
| -1 | 165,033,071 |
If you did it right, you will end up with this table:
| 1 | 7 | 73 | 127 | 511 | 889 | 2,543 | 9,271 | 17,801 | 64,897 | 185,639 | 322,961 | 1,299,473 | 2,260,727 | 23,576,153 | 165,033,071 |
| -1 | -7 | -73 | -127 | -511 | -889 | -2,543 | -9,271 | -17,801 | -64,897 | -185,639 | -322,961 | -1,299,473 | -2,260,727 | -23,576,153 | -165,033,071 |
Here are some more numbers to try:
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