A:
Positive:
1 x 1565510055 x 3131020113 x 1204238565 x 2408477613 x 2553853065 x 510773929 x 398457969 x 19645
Negative:
-1 x -156551005-5 x -31310201-13 x -12042385-65 x -2408477-613 x -255385-3065 x -51077-3929 x -39845-7969 x -19645
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 156,551,005, 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 | 156,551,005 | |
| -1 | -156,551,005 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 156,551,005.
Example:
1 x 156,551,005 = 156,551,005
and
-1 x -156,551,005 = 156,551,005
Notice both answers equal 156,551,005
With that explanation out of the way, let's continue. Next, we take the number 156,551,005 and divide it by 2:
156,551,005 ÷ 2 = 78,275,502.5
If the quotient is a whole number, then 2 and 78,275,502.5 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 | 156,551,005 | |
| -1 | -156,551,005 |
Now, we try dividing 156,551,005 by 3:
156,551,005 ÷ 3 = 52,183,668.3333
If the quotient is a whole number, then 3 and 52,183,668.3333 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 | 156,551,005 | |
| -1 | -156,551,005 |
Let's try dividing by 4:
156,551,005 ÷ 4 = 39,137,751.25
If the quotient is a whole number, then 4 and 39,137,751.25 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 | 156,551,005 | |
| -1 | 156,551,005 |
If you did it right, you will end up with this table:
| 1 | 5 | 13 | 65 | 613 | 3,065 | 3,929 | 7,969 | 19,645 | 39,845 | 51,077 | 255,385 | 2,408,477 | 12,042,385 | 31,310,201 | 156,551,005 |
| -1 | -5 | -13 | -65 | -613 | -3,065 | -3,929 | -7,969 | -19,645 | -39,845 | -51,077 | -255,385 | -2,408,477 | -12,042,385 | -31,310,201 | -156,551,005 |
Here are some more numbers to try:
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