A:
Positive:
1 x 236891055 x 473782111 x 215355519 x 124679555 x 43071195 x 249359209 x 1133451045 x 22669
Negative:
-1 x -23689105-5 x -4737821-11 x -2153555-19 x -1246795-55 x -430711-95 x -249359-209 x -113345-1045 x -22669
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 23,689,105, 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 | 23,689,105 | |
| -1 | -23,689,105 |
When you multiply two negative numbers together, you get a positive number. That means both the positive and negative numbers are factors of 23,689,105.
Example:
1 x 23,689,105 = 23,689,105
and
-1 x -23,689,105 = 23,689,105
Notice both answers equal 23,689,105
With that explanation out of the way, let's continue. Next, we take the number 23,689,105 and divide it by 2:
23,689,105 ÷ 2 = 11,844,552.5
If the quotient is a whole number, then 2 and 11,844,552.5 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 | 23,689,105 | |
| -1 | -23,689,105 |
Now, we try dividing 23,689,105 by 3:
23,689,105 ÷ 3 = 7,896,368.3333
If the quotient is a whole number, then 3 and 7,896,368.3333 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 | 23,689,105 | |
| -1 | -23,689,105 |
Let's try dividing by 4:
23,689,105 ÷ 4 = 5,922,276.25
If the quotient is a whole number, then 4 and 5,922,276.25 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 | 23,689,105 | |
| -1 | 23,689,105 |
If you did it right, you will end up with this table:
| 1 | 5 | 11 | 19 | 55 | 95 | 209 | 1,045 | 22,669 | 113,345 | 249,359 | 430,711 | 1,246,795 | 2,153,555 | 4,737,821 | 23,689,105 |
| -1 | -5 | -11 | -19 | -55 | -95 | -209 | -1,045 | -22,669 | -113,345 | -249,359 | -430,711 | -1,246,795 | -2,153,555 | -4,737,821 | -23,689,105 |
Here are some more numbers to try:
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