A:
Positive:
1 x 21133225311 x 1921202317 x 1243130953 x 3987401187 x 1130119583 x 362491901 x 2345539911 x 21323
Negative:
-1 x -211332253-11 x -19212023-17 x -12431309-53 x -3987401-187 x -1130119-583 x -362491-901 x -234553-9911 x -21323
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 211,332,253, 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 | 211,332,253 | |
| -1 | -211,332,253 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 211,332,253.
Example:
1 x 211,332,253 = 211,332,253
and
-1 x -211,332,253 = 211,332,253
Notice both answers equal 211,332,253
With that explanation out of the way, let's continue. Next, we take the number 211,332,253 and divide it by 2:
211,332,253 ÷ 2 = 105,666,126.5
If the quotient is a whole number, then 2 and 105,666,126.5 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 | 211,332,253 | |
| -1 | -211,332,253 |
Now, we try dividing 211,332,253 by 3:
211,332,253 ÷ 3 = 70,444,084.3333
If the quotient is a whole number, then 3 and 70,444,084.3333 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 | 211,332,253 | |
| -1 | -211,332,253 |
Let's try dividing by 4:
211,332,253 ÷ 4 = 52,833,063.25
If the quotient is a whole number, then 4 and 52,833,063.25 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 | 211,332,253 | |
| -1 | 211,332,253 |
If you did it right, you will end up with this table:
| 1 | 11 | 17 | 53 | 187 | 583 | 901 | 9,911 | 21,323 | 234,553 | 362,491 | 1,130,119 | 3,987,401 | 12,431,309 | 19,212,023 | 211,332,253 |
| -1 | -11 | -17 | -53 | -187 | -583 | -901 | -9,911 | -21,323 | -234,553 | -362,491 | -1,130,119 | -3,987,401 | -12,431,309 | -19,212,023 | -211,332,253 |
Here are some more numbers to try:
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