A:
Positive:
1 x 1640521555 x 3281043131 x 529200559 x 2780545155 x 1058401295 x 5561091829 x 896959145 x 17939
Negative:
-1 x -164052155-5 x -32810431-31 x -5292005-59 x -2780545-155 x -1058401-295 x -556109-1829 x -89695-9145 x -17939
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 164,052,155, 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 | 164,052,155 | |
| -1 | -164,052,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 164,052,155.
Example:
1 x 164,052,155 = 164,052,155
and
-1 x -164,052,155 = 164,052,155
Notice both answers equal 164,052,155
With that explanation out of the way, let's continue. Next, we take the number 164,052,155 and divide it by 2:
164,052,155 ÷ 2 = 82,026,077.5
If the quotient is a whole number, then 2 and 82,026,077.5 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 | 164,052,155 | |
| -1 | -164,052,155 |
Now, we try dividing 164,052,155 by 3:
164,052,155 ÷ 3 = 54,684,051.6667
If the quotient is a whole number, then 3 and 54,684,051.6667 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 | 164,052,155 | |
| -1 | -164,052,155 |
Let's try dividing by 4:
164,052,155 ÷ 4 = 41,013,038.75
If the quotient is a whole number, then 4 and 41,013,038.75 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 | 164,052,155 | |
| -1 | 164,052,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 31 | 59 | 155 | 295 | 1,829 | 9,145 | 17,939 | 89,695 | 556,109 | 1,058,401 | 2,780,545 | 5,292,005 | 32,810,431 | 164,052,155 |
| -1 | -5 | -31 | -59 | -155 | -295 | -1,829 | -9,145 | -17,939 | -89,695 | -556,109 | -1,058,401 | -2,780,545 | -5,292,005 | -32,810,431 | -164,052,155 |
Here are some more numbers to try:
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