A:
Positive:
1 x 15583120311 x 1416647331 x 5026813149 x 1045847341 x 4569831639 x 950773067 x 508094619 x 33737
Negative:
-1 x -155831203-11 x -14166473-31 x -5026813-149 x -1045847-341 x -456983-1639 x -95077-3067 x -50809-4619 x -33737
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 155,831,203, 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 | 155,831,203 | |
| -1 | -155,831,203 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 155,831,203.
Example:
1 x 155,831,203 = 155,831,203
and
-1 x -155,831,203 = 155,831,203
Notice both answers equal 155,831,203
With that explanation out of the way, let's continue. Next, we take the number 155,831,203 and divide it by 2:
155,831,203 ÷ 2 = 77,915,601.5
If the quotient is a whole number, then 2 and 77,915,601.5 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 | 155,831,203 | |
| -1 | -155,831,203 |
Now, we try dividing 155,831,203 by 3:
155,831,203 ÷ 3 = 51,943,734.3333
If the quotient is a whole number, then 3 and 51,943,734.3333 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 | 155,831,203 | |
| -1 | -155,831,203 |
Let's try dividing by 4:
155,831,203 ÷ 4 = 38,957,800.75
If the quotient is a whole number, then 4 and 38,957,800.75 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 | 155,831,203 | |
| -1 | 155,831,203 |
If you did it right, you will end up with this table:
| 1 | 11 | 31 | 149 | 341 | 1,639 | 3,067 | 4,619 | 33,737 | 50,809 | 95,077 | 456,983 | 1,045,847 | 5,026,813 | 14,166,473 | 155,831,203 |
| -1 | -11 | -31 | -149 | -341 | -1,639 | -3,067 | -4,619 | -33,737 | -50,809 | -95,077 | -456,983 | -1,045,847 | -5,026,813 | -14,166,473 | -155,831,203 |
Here are some more numbers to try:
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