A:
Positive:
1 x 1012081555 x 2024163119 x 532674547 x 215336595 x 1065349235 x 430673361 x 280355893 x 1133351193 x 848351805 x 560714465 x 226675965 x 16967
Negative:
-1 x -101208155-5 x -20241631-19 x -5326745-47 x -2153365-95 x -1065349-235 x -430673-361 x -280355-893 x -113335-1193 x -84835-1805 x -56071-4465 x -22667-5965 x -16967
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 101,208,155, 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 | 101,208,155 | |
| -1 | -101,208,155 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 101,208,155.
Example:
1 x 101,208,155 = 101,208,155
and
-1 x -101,208,155 = 101,208,155
Notice both answers equal 101,208,155
With that explanation out of the way, let's continue. Next, we take the number 101,208,155 and divide it by 2:
101,208,155 ÷ 2 = 50,604,077.5
If the quotient is a whole number, then 2 and 50,604,077.5 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 | 101,208,155 | |
| -1 | -101,208,155 |
Now, we try dividing 101,208,155 by 3:
101,208,155 ÷ 3 = 33,736,051.6667
If the quotient is a whole number, then 3 and 33,736,051.6667 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 | 101,208,155 | |
| -1 | -101,208,155 |
Let's try dividing by 4:
101,208,155 ÷ 4 = 25,302,038.75
If the quotient is a whole number, then 4 and 25,302,038.75 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 | 101,208,155 | |
| -1 | 101,208,155 |
If you did it right, you will end up with this table:
| 1 | 5 | 19 | 47 | 95 | 235 | 361 | 893 | 1,193 | 1,805 | 4,465 | 5,965 | 16,967 | 22,667 | 56,071 | 84,835 | 113,335 | 280,355 | 430,673 | 1,065,349 | 2,153,365 | 5,326,745 | 20,241,631 | 101,208,155 |
| -1 | -5 | -19 | -47 | -95 | -235 | -361 | -893 | -1,193 | -1,805 | -4,465 | -5,965 | -16,967 | -22,667 | -56,071 | -84,835 | -113,335 | -280,355 | -430,673 | -1,065,349 | -2,153,365 | -5,326,745 | -20,241,631 | -101,208,155 |
Here are some more numbers to try:
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