A:
Positive:
1 x 15560161729 x 536557331 x 501940773 x 2131529899 x 1730832117 x 735012263 x 687592371 x 65627
Negative:
-1 x -155601617-29 x -5365573-31 x -5019407-73 x -2131529-899 x -173083-2117 x -73501-2263 x -68759-2371 x -65627
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 155,601,617, 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 | 155,601,617 | |
| -1 | -155,601,617 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,601,617.
Example:
1 x 155,601,617 = 155,601,617
and
-1 x -155,601,617 = 155,601,617
Notice both answers equal 155,601,617
With that explanation out of the way, let's continue. Next, we take the number 155,601,617 and divide it by 2:
155,601,617 ÷ 2 = 77,800,808.5
If the quotient is a whole number, then 2 and 77,800,808.5 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 | 155,601,617 | |
| -1 | -155,601,617 |
Now, we try dividing 155,601,617 by 3:
155,601,617 ÷ 3 = 51,867,205.6667
If the quotient is a whole number, then 3 and 51,867,205.6667 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 | 155,601,617 | |
| -1 | -155,601,617 |
Let's try dividing by 4:
155,601,617 ÷ 4 = 38,900,404.25
If the quotient is a whole number, then 4 and 38,900,404.25 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 | 155,601,617 | |
| -1 | 155,601,617 |
If you did it right, you will end up with this table:
| 1 | 29 | 31 | 73 | 899 | 2,117 | 2,263 | 2,371 | 65,627 | 68,759 | 73,501 | 173,083 | 2,131,529 | 5,019,407 | 5,365,573 | 155,601,617 |
| -1 | -29 | -31 | -73 | -899 | -2,117 | -2,263 | -2,371 | -65,627 | -68,759 | -73,501 | -173,083 | -2,131,529 | -5,019,407 | -5,365,573 | -155,601,617 |
Here are some more numbers to try:
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