A:
Positive:
1 x 201011237 x 287158917 x 118241949 x 41022759 x 340697119 x 168917409 x 49147413 x 48671833 x 241311003 x 200412863 x 70212891 x 6953
Negative:
-1 x -20101123-7 x -2871589-17 x -1182419-49 x -410227-59 x -340697-119 x -168917-409 x -49147-413 x -48671-833 x -24131-1003 x -20041-2863 x -7021-2891 x -6953
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 20,101,123, 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 | 20,101,123 | |
| -1 | -20,101,123 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 20,101,123.
Example:
1 x 20,101,123 = 20,101,123
and
-1 x -20,101,123 = 20,101,123
Notice both answers equal 20,101,123
With that explanation out of the way, let's continue. Next, we take the number 20,101,123 and divide it by 2:
20,101,123 ÷ 2 = 10,050,561.5
If the quotient is a whole number, then 2 and 10,050,561.5 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 | 20,101,123 | |
| -1 | -20,101,123 |
Now, we try dividing 20,101,123 by 3:
20,101,123 ÷ 3 = 6,700,374.3333
If the quotient is a whole number, then 3 and 6,700,374.3333 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 | 20,101,123 | |
| -1 | -20,101,123 |
Let's try dividing by 4:
20,101,123 ÷ 4 = 5,025,280.75
If the quotient is a whole number, then 4 and 5,025,280.75 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 | 20,101,123 | |
| -1 | 20,101,123 |
If you did it right, you will end up with this table:
| 1 | 7 | 17 | 49 | 59 | 119 | 409 | 413 | 833 | 1,003 | 2,863 | 2,891 | 6,953 | 7,021 | 20,041 | 24,131 | 48,671 | 49,147 | 168,917 | 340,697 | 410,227 | 1,182,419 | 2,871,589 | 20,101,123 |
| -1 | -7 | -17 | -49 | -59 | -119 | -409 | -413 | -833 | -1,003 | -2,863 | -2,891 | -6,953 | -7,021 | -20,041 | -24,131 | -48,671 | -49,147 | -168,917 | -340,697 | -410,227 | -1,182,419 | -2,871,589 | -20,101,123 |
Here are some more numbers to try:
Try the factor calculator