A:
Positive:
1 x 15551513317 x 914794919 x 818500743 x 3616631323 x 481471731 x 212743817 x 19034911197 x 13889
Negative:
-1 x -155515133-17 x -9147949-19 x -8185007-43 x -3616631-323 x -481471-731 x -212743-817 x -190349-11197 x -13889
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 155,515,133, 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 | 155,515,133 | |
| -1 | -155,515,133 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,515,133.
Example:
1 x 155,515,133 = 155,515,133
and
-1 x -155,515,133 = 155,515,133
Notice both answers equal 155,515,133
With that explanation out of the way, let's continue. Next, we take the number 155,515,133 and divide it by 2:
155,515,133 ÷ 2 = 77,757,566.5
If the quotient is a whole number, then 2 and 77,757,566.5 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 | 155,515,133 | |
| -1 | -155,515,133 |
Now, we try dividing 155,515,133 by 3:
155,515,133 ÷ 3 = 51,838,377.6667
If the quotient is a whole number, then 3 and 51,838,377.6667 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 | 155,515,133 | |
| -1 | -155,515,133 |
Let's try dividing by 4:
155,515,133 ÷ 4 = 38,878,783.25
If the quotient is a whole number, then 4 and 38,878,783.25 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 | 155,515,133 | |
| -1 | 155,515,133 |
If you did it right, you will end up with this table:
| 1 | 17 | 19 | 43 | 323 | 731 | 817 | 11,197 | 13,889 | 190,349 | 212,743 | 481,471 | 3,616,631 | 8,185,007 | 9,147,949 | 155,515,133 |
| -1 | -17 | -19 | -43 | -323 | -731 | -817 | -11,197 | -13,889 | -190,349 | -212,743 | -481,471 | -3,616,631 | -8,185,007 | -9,147,949 | -155,515,133 |
Here are some more numbers to try:
Try the factor calculator