A:
Positive:
1 x 1651160755 x 3302321525 x 660464331 x 5326325155 x 1065265257 x 642475775 x 213053829 x 1991751285 x 1284954145 x 398356425 x 256997967 x 20725
Negative:
-1 x -165116075-5 x -33023215-25 x -6604643-31 x -5326325-155 x -1065265-257 x -642475-775 x -213053-829 x -199175-1285 x -128495-4145 x -39835-6425 x -25699-7967 x -20725
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 165,116,075, 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 | 165,116,075 | |
| -1 | -165,116,075 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,116,075.
Example:
1 x 165,116,075 = 165,116,075
and
-1 x -165,116,075 = 165,116,075
Notice both answers equal 165,116,075
With that explanation out of the way, let's continue. Next, we take the number 165,116,075 and divide it by 2:
165,116,075 ÷ 2 = 82,558,037.5
If the quotient is a whole number, then 2 and 82,558,037.5 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 | 165,116,075 | |
| -1 | -165,116,075 |
Now, we try dividing 165,116,075 by 3:
165,116,075 ÷ 3 = 55,038,691.6667
If the quotient is a whole number, then 3 and 55,038,691.6667 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 | 165,116,075 | |
| -1 | -165,116,075 |
Let's try dividing by 4:
165,116,075 ÷ 4 = 41,279,018.75
If the quotient is a whole number, then 4 and 41,279,018.75 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 | 165,116,075 | |
| -1 | 165,116,075 |
If you did it right, you will end up with this table:
| 1 | 5 | 25 | 31 | 155 | 257 | 775 | 829 | 1,285 | 4,145 | 6,425 | 7,967 | 20,725 | 25,699 | 39,835 | 128,495 | 199,175 | 213,053 | 642,475 | 1,065,265 | 5,326,325 | 6,604,643 | 33,023,215 | 165,116,075 |
| -1 | -5 | -25 | -31 | -155 | -257 | -775 | -829 | -1,285 | -4,145 | -6,425 | -7,967 | -20,725 | -25,699 | -39,835 | -128,495 | -199,175 | -213,053 | -642,475 | -1,065,265 | -5,326,325 | -6,604,643 | -33,023,215 | -165,116,075 |
Here are some more numbers to try:
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