A:
Positive:
1 x 1650440655 x 3300881341 x 4025465205 x 805093337 x 4897451685 x 979492389 x 6908511945 x 13817
Negative:
-1 x -165044065-5 x -33008813-41 x -4025465-205 x -805093-337 x -489745-1685 x -97949-2389 x -69085-11945 x -13817
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 165,044,065, 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 | 165,044,065 | |
| -1 | -165,044,065 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 165,044,065.
Example:
1 x 165,044,065 = 165,044,065
and
-1 x -165,044,065 = 165,044,065
Notice both answers equal 165,044,065
With that explanation out of the way, let's continue. Next, we take the number 165,044,065 and divide it by 2:
165,044,065 ÷ 2 = 82,522,032.5
If the quotient is a whole number, then 2 and 82,522,032.5 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 | 165,044,065 | |
| -1 | -165,044,065 |
Now, we try dividing 165,044,065 by 3:
165,044,065 ÷ 3 = 55,014,688.3333
If the quotient is a whole number, then 3 and 55,014,688.3333 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 | 165,044,065 | |
| -1 | -165,044,065 |
Let's try dividing by 4:
165,044,065 ÷ 4 = 41,261,016.25
If the quotient is a whole number, then 4 and 41,261,016.25 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 | 165,044,065 | |
| -1 | 165,044,065 |
If you did it right, you will end up with this table:
| 1 | 5 | 41 | 205 | 337 | 1,685 | 2,389 | 11,945 | 13,817 | 69,085 | 97,949 | 489,745 | 805,093 | 4,025,465 | 33,008,813 | 165,044,065 |
| -1 | -5 | -41 | -205 | -337 | -1,685 | -2,389 | -11,945 | -13,817 | -69,085 | -97,949 | -489,745 | -805,093 | -4,025,465 | -33,008,813 | -165,044,065 |
Here are some more numbers to try:
Try the factor calculator