A:
Positive:
1 x 1012112155 x 202422437 x 1445874535 x 289174949 x 206553573 x 1386455245 x 413107365 x 277291511 x 1980652555 x 396133577 x 282955659 x 17885
Negative:
-1 x -101211215-5 x -20242243-7 x -14458745-35 x -2891749-49 x -2065535-73 x -1386455-245 x -413107-365 x -277291-511 x -198065-2555 x -39613-3577 x -28295-5659 x -17885
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 101,211,215, 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 | 101,211,215 | |
| -1 | -101,211,215 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 101,211,215.
Example:
1 x 101,211,215 = 101,211,215
and
-1 x -101,211,215 = 101,211,215
Notice both answers equal 101,211,215
With that explanation out of the way, let's continue. Next, we take the number 101,211,215 and divide it by 2:
101,211,215 ÷ 2 = 50,605,607.5
If the quotient is a whole number, then 2 and 50,605,607.5 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 | 101,211,215 | |
| -1 | -101,211,215 |
Now, we try dividing 101,211,215 by 3:
101,211,215 ÷ 3 = 33,737,071.6667
If the quotient is a whole number, then 3 and 33,737,071.6667 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 | 101,211,215 | |
| -1 | -101,211,215 |
Let's try dividing by 4:
101,211,215 ÷ 4 = 25,302,803.75
If the quotient is a whole number, then 4 and 25,302,803.75 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 | 101,211,215 | |
| -1 | 101,211,215 |
If you did it right, you will end up with this table:
| 1 | 5 | 7 | 35 | 49 | 73 | 245 | 365 | 511 | 2,555 | 3,577 | 5,659 | 17,885 | 28,295 | 39,613 | 198,065 | 277,291 | 413,107 | 1,386,455 | 2,065,535 | 2,891,749 | 14,458,745 | 20,242,243 | 101,211,215 |
| -1 | -5 | -7 | -35 | -49 | -73 | -245 | -365 | -511 | -2,555 | -3,577 | -5,659 | -17,885 | -28,295 | -39,613 | -198,065 | -277,291 | -413,107 | -1,386,455 | -2,065,535 | -2,891,749 | -14,458,745 | -20,242,243 | -101,211,215 |
Here are some more numbers to try:
Try the factor calculator