A:
Positive:
1 x 2352879111 x 213898113 x 1809907137 x 171743143 x 1645371201 x 195911507 x 156131781 x 13211
Negative:
-1 x -23528791-11 x -2138981-13 x -1809907-137 x -171743-143 x -164537-1201 x -19591-1507 x -15613-1781 x -13211
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 23,528,791, 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 | 23,528,791 | |
| -1 | -23,528,791 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,528,791.
Example:
1 x 23,528,791 = 23,528,791
and
-1 x -23,528,791 = 23,528,791
Notice both answers equal 23,528,791
With that explanation out of the way, let's continue. Next, we take the number 23,528,791 and divide it by 2:
23,528,791 ÷ 2 = 11,764,395.5
If the quotient is a whole number, then 2 and 11,764,395.5 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 | 23,528,791 | |
| -1 | -23,528,791 |
Now, we try dividing 23,528,791 by 3:
23,528,791 ÷ 3 = 7,842,930.3333
If the quotient is a whole number, then 3 and 7,842,930.3333 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 | 23,528,791 | |
| -1 | -23,528,791 |
Let's try dividing by 4:
23,528,791 ÷ 4 = 5,882,197.75
If the quotient is a whole number, then 4 and 5,882,197.75 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 | 23,528,791 | |
| -1 | 23,528,791 |
If you did it right, you will end up with this table:
| 1 | 11 | 13 | 137 | 143 | 1,201 | 1,507 | 1,781 | 13,211 | 15,613 | 19,591 | 164,537 | 171,743 | 1,809,907 | 2,138,981 | 23,528,791 |
| -1 | -11 | -13 | -137 | -143 | -1,201 | -1,507 | -1,781 | -13,211 | -15,613 | -19,591 | -164,537 | -171,743 | -1,809,907 | -2,138,981 | -23,528,791 |
Here are some more numbers to try:
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