A:
Positive:
1 x 10053312113 x 773331717 x 5913713193 x 520897221 x 4549012357 x 426532509 x 400693281 x 30641
Negative:
-1 x -100533121-13 x -7733317-17 x -5913713-193 x -520897-221 x -454901-2357 x -42653-2509 x -40069-3281 x -30641
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 100,533,121, 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 | 100,533,121 | |
| -1 | -100,533,121 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 100,533,121.
Example:
1 x 100,533,121 = 100,533,121
and
-1 x -100,533,121 = 100,533,121
Notice both answers equal 100,533,121
With that explanation out of the way, let's continue. Next, we take the number 100,533,121 and divide it by 2:
100,533,121 ÷ 2 = 50,266,560.5
If the quotient is a whole number, then 2 and 50,266,560.5 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 | 100,533,121 | |
| -1 | -100,533,121 |
Now, we try dividing 100,533,121 by 3:
100,533,121 ÷ 3 = 33,511,040.3333
If the quotient is a whole number, then 3 and 33,511,040.3333 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 | 100,533,121 | |
| -1 | -100,533,121 |
Let's try dividing by 4:
100,533,121 ÷ 4 = 25,133,280.25
If the quotient is a whole number, then 4 and 25,133,280.25 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 | 100,533,121 | |
| -1 | 100,533,121 |
If you did it right, you will end up with this table:
| 1 | 13 | 17 | 193 | 221 | 2,357 | 2,509 | 3,281 | 30,641 | 40,069 | 42,653 | 454,901 | 520,897 | 5,913,713 | 7,733,317 | 100,533,121 |
| -1 | -13 | -17 | -193 | -221 | -2,357 | -2,509 | -3,281 | -30,641 | -40,069 | -42,653 | -454,901 | -520,897 | -5,913,713 | -7,733,317 | -100,533,121 |
Here are some more numbers to try:
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